The Dr Louise Newson Podcast - 105 – Mathilde Barker: endometriosis at 19, menopause at 23

Episode Date: September 29, 2026

Mathilde Barker was 23 when she finally understood why, since the age of 14, doctors had told her it was "just" muscle strain, put her on antidepressants, and once removed her appendix by mistake. It took five years to get a diagnosis of endometriosis, and two surgeries later, adenomyosis too.She joins Dr Louise Newson to talk through her whole journey: the misdiagnoses, a scan result that was reversed by a phone call, being told by a doctor at 19 that having a baby would cure her symptoms, and the reality of being put into a medically induced menopause in her twenties just to manage the pain.Louise explains what's actually happening in the body with endometriosis and adenomyosis, why low testosterone and progesterone are so common in women with these conditions, and why blocking hormones completely isn't always the right approach.Louise ends, as always, with three take-home tips for anyone who suspects they — or someone they know — might have endometriosis or adenomyosis.Lets connect👉 Track your symptoms and understand hormones, download the Balance app: ⁠https://bit.ly/4yZty5A⁠👉 More from Dr Louise Newson: ⁠https://linkin.bio/drlouisenewson⁠👉 Follow Mathilde: @mathildebarker

On the podcast today, I've got a 23-year-old Matild who talks very openly about her experience of adenomyosis and endometriosis and how long it took for her to have the right diagnosis, the amount of time she suffered, and also the different treatment options she tried, including putting her into an early menopause. So listen carefully and share this episode because I can guarantee you'll know someone with endometriosis. So thank you so much for coming today. It's really great having younger people in my studio because my work is not just about menopausal older women. Increasingly, I speak to a lot of women with endometriosis who have taken years for the diagnosis, then they're not on the right treatment, still getting symptoms and it's getting more and more confusing for people. So I'm really grateful that you're here to talk about your experience. So just tell me a bit about. that's, you know, your whole journey to get your diagnosis of adenomyosis and endometeotiasis.

Sure. Well, looking back, it all kind of merges into one, but it was years of going back to the doctors, being turned away, misdiagnosed. For example, had my appendix out. Did you? Yeah, I did. And that's quite common. I hear that quite a lot. I've also been put on antidepressants, anti-anxiety. I tried the pill, the coil. But it did come down to being diagnosed with endometriosis after five years, which I understand is quite quick. I mean, it sounds quick, but five years. I mean, it's a long time.

Because how old are you now? I'm 23 now. Yeah, so how old were you when you were diagnosed? I was 19. So you started having symptoms when you were 14,ish, yeah. Yeah. So through GCSEs? Yeah, school, really hard time.

Yeah. So what were your main symptoms? Back pain. And I did a lot of dance when I was younger. and I trained in dance. So the doctor's always associated it with that and muscle strain. But you knew it wasn't. Well, at first I did believe that because you just do believe what medical professionals do tell you,

especially at such a young impressionable age. So I did think, oh, I need to stop dancing for six weeks. I need to see a physiogny. I need to see an osteopath. But then when I'd finished those courses, I'd had acupuncture, I'd tried everything. I just said to my mum, like, this is not right. there's something wrong. Yeah.

And that's how I found out. And what were your periods like? My periods were regular. They were normal. And I think that's what kind of threw me off. I didn't actually know what endometriosis was. But I did, as time went on, suffer more and more with my periods. And that's how I got the correlation between the pain and the menstrual cycle.

And that's when I then was sent to a gynecologist. And so how long after having your first symptom was that? Like three years, three and a half years? And then what did the gynecologist do? I then had a scan, a ultrasound and a MRI, but between those two scans was probably about a year. And I had blood tests, and I was put on the pill, and I had the coil inserted.

So all of that was quite a bit of a jumble for me, of hormones and being told one thing. And I actually had my scan and they said that the endometrial particles did show up. But then I got call saying they'd made a mistake and that they didn't show up. Oh, Josh, so that's confusing. Yeah, so I was told one minute that I did have endometriosis from the scan, which isn't common because, as we know, it doesn't always show up. To then being told, oh, we've made a mistake, like your scan was completely clear, completely normal. And it's kind of like.

So what's causing it then? Yeah, exactly. And did going on the pill or have the coil make any difference? No, so going on the pill actually messed up with my body and all my hormones were a bit all over the place really. And I just moved out. I had just started my degree course. It was a busy time for me anyway. So having different hormones in my body kind of threw me off.

And I was still in pain. So I quickly came off the pill. And then I had the myrina coil and same. The myrina coil didn't even stop. my periods. So looking back, I was, I had that for two years. Looking back, I should have had that taken out maybe after six months and tried a different thing. So yeah. And now what do you do? Now I, I have had two surgeries. And so which is crazy to me because at the age of 23, I would never have thought that I would have needed two surgeries to extract endometriosis. But in my second

surgery, I was also diagnosed with adenomyosis. as well, which they found. And my ovary was fused to my pelvic wall and I had a fimbrile cyst. There was a lot going on. Absolutely explains why I was in so much pain, which I couldn't believe. But now my

treatment plan is RICO. So for people who don't know, that is basically the injection. Is it the Zolodex? Zolodex. Injection with HRT on top, but it's all in one pill and it's oral. So I don't have to inject myself, which I'm grateful for. Yeah, but it only contains

estrogen-dial, doesn't it? It only contains one hormone which is, and it's quite a low dose as well. Let's just take it back. So what is endometriosis? Because lots of people have it, think they have it, as being diagnosed, it's great that it's been talked about more. It's frustrating that it's so common and people have to wait so long for diagnosis, but just explain to listeners what endometriosis is. Sure, so from my understanding, I'm no medical professional.

It's the lining of your womb growing outside of your uterus. So that can create lesions between your organs and it can grow anywhere. And it kind of reproduces through estrogen. That makes it grow from my understanding. And common symptoms can be inflammation, pain, heavy periods, painful intercourse. And for me personally, I had a lot of. lack of appetite. I was constantly dizzy and lightheaded. And it's hard because all of these symptoms could be for multiple different conditions. So to pinpoint that it actually is an endometeosis

symptom is probably why it takes so long to diagnose. Yeah. And it's really interesting because it's tissue that's like the lining of the wound. And when I was at medical school, there was a theory that it was the actual lining of the wound and they talked about retrograde menstruation where literally bits of the womb would float off to other parts of the body. And now they think it's more that it's tissue that's like the lining of the womb elsewhere. But it responds to hormonal changes. So as you, I'm sure know throughout our menstrual cycle, our hormone levels will change to try and get the body and the womb ready for pregnancy because that's what, you know, women are on the planet for evolutionary.

And so the lining of the womb will thicken, with Easterdial. And then the second half of the cycle, there's a lot of progesterone, which then declines very rapidly if there isn't a pregnancy. And with that rapid decline of progesterone, the lining of the womb shreds.

And so it's a constant dynamic motion, really, of the cells in the lining of the womb. But if you have endometriosis deposits, then they will fluctuate and change with changing hormones. And if they're in a tight space, like between your bowel or sometimes stuck onto the bladder, then any movement of those cells getting bigger or smaller can cause the symptoms. But people can get it in the lungs, in the diaphragm, there's even in the brain.

And so I think very much it's more of a multi-organ systemic disorder, really. Obviously, it's more common in the pelvis, but it's not really a gynecological disorder. And the problem is with all health of women problems is that no one really takes ownership. everyone just wants to wash their hands off women who are complaining of non-specific symptoms. And so it's been sort of almost owned by gynecologists, but gynaecologists only really specialise in the pelvic organs. And then it's become more of a surgical problem. So let's cut it out and everything will be fine.

Well, if you've got a bit of endometriosis on your diaphragm, you can't really cut out a bit of your diaphragm very easily. Or even, as you know, if it's stuck on your bowel, You don't really want the bowel taken out. And so I'm very simplistic in the way that I think and the way that I practice medicine and think about what's going on, what really is going on, what's causing it. Because if you can treat the underlying cause, it's always better. And one of the problems is we don't know because there's been very little studies, very little research, usual thing.

But there does seem to be an increased incidence of endometriosis, far more. I've been a doctor for 31 years and when I was at medical school, we didn't get taught about endometriosis, but it wasn't, it didn't seem as common. Whether it's because it's more likely to be diagnosed more at now and people still had symptoms, but were misdiagnosed, it's impossible to know. But there does seem to be more people having those symptoms and adenomyosis is where it's the tissue like the lining of the room actually within the womb. so then it can be very painful with the change in hormone levels. But it's an inflammatory process. So if you look down the microscope of endometriosis deposits, there's inflammation, there's more inflammatory cells.

And the blood supply to those lesions actually gives more inflammatory cells. And then the lesions actually make inflammatory cells. So it's like self-perpetuating really. And the problem with any hormone treatments, you have to be really clear whether it is a hormone or not. So you've actually been given treatments that haven't been proper hormones. So the synthetic hormones in contraceptives, the synthetic hormone in the marina coil, they actually can increase inflammation in the body.

Yeah. So they can sometimes make things worse. Some people, and a lot of people, I'm sure you've spoken to as well with endo or adenomyosis, find that actually having contraceptive can improve symptoms short term because they're not getting a fluctuation in hormones. But in the longer term, you're still got inflammation and it can still, the disease can carry on, but it might be less painful. So it's thinking about how we can modify the lesions, if you like, so you don't end up with surgery. You don't end up with worsening.

And so anything that reduces inflammation is really good. And our hormones naturally, so our progesterone, estradiol, testosterone actually work to reduce inflammation. Yes. Whereas the synthetic hormones will increase it because they block. our natural hormones working. Yeah. But a lot of people and a lot of gynecologists and endometriosis especially think

because hormones are a nuisance with endometriosis, let's just block them completely. And that's where like Zolodex comes in. They think, well, let's just get rid of them. But then Zolodex is giving people a chemical menopause. Isn't that when, doesn't it send a signal to your brain to stop releasing it? So it's, so all our hormones are amazing.

They all have got this biofeedback, if you like. So your brain will signal through the blood supply, the levels of hormones and going through the brain and a small area of the brain will pick that up and go, oh, this is low. We've got low Easterdala, we've got low progesterine, let's give more of this hormone from the brain signals the ovaries and other tissues to produce more hormones. So what it does is it stops having any change. And so then the body doesn't detect the hormone levels and then just that basically tells you. That basically the body we don't need to have any more hormones and so switches only hormones off and so a lot of doctors

think well that's great this woman doesn't have hormones in the body so that fluctuation of hormones won't be stimulating the endometriosis deposits so they'll feel better well it might stop like I say that fluctuation but do you really want to go into menopause when you're in your 20s no so and because they were symptoms but long-term health risks as well of not having them so and that's where I really worry. And then this treatment that you're having that sort of gives you a little bit of estrogen back is still not replacing your hormones properly. And a lot of people I speak to have been on it actually find that they do get side effects with it and they don't tolerate it that well. So, but you're probably better than being on nothing, are you? Well, I'd rather have

symptoms of menopause than symptoms of the endometeosis and adenomyosis because I mean, the one thing that's probably affected me the most with the RICO side effects is the hot flushes. And I'd be with like my mum and she'd be like, oh, it's a bit hot in here and I'd be like, oh yeah, yeah, it's a bit hot in here and it'd be like hot flush symptoms or like I'd be in the car and someone would be like with the aircon on and I'd be like having a hot flush and I'm like, oh my goodness, I am having a hot flush because of this medication.

but in terms of other symptoms like that's all I've experienced in terms of the menopause side effects to my knowledge because I'm sure that it's affected my body in other ways that I might not be aware of but for me like I would take hot flush over not being able to move any day

and did anyone talk to you about any long term consequences of being menopausal so not just flushes but effects of your bone or your brain or your heart? Yeah, so I have been made aware that it can lower my bone density. So I have to have a dexas scan every year. I've not actually had my first one.

And that worries me, obviously, being 23. I do have another symptom which is joint pain. And I have just run the London Marathon a few months ago. And I really struggled. My surgery came in November and I'd already signed up to the London Marathon which was in April and I managed to turn it around

I had about three months training after recovering from the surgery and I did the run but it was the worst thing I've ever done in my life and that would have been different if I wasn't on this medication if I just had the surgery but yeah the joint pain, the hot flushes and the bone density It's a lot. But for me, it just trumped the symptoms of the endometriosis, unfortunately.

I'd like to give my clinic a shout out because without it, I wouldn't be able to do this podcast. My clinic helps many women throughout the UK to access evidence-based and individualise support and treatment for their hormone health. To find out more about the clinic, visit newsomehealth.com.uk. Did anyone talk to you about any other type of treatment, any other hormone treatment at all? Because I'd already tried the coil and the pill, wasn't keen on going for the implant after them not working. That's kind of the solution that was presented to me. So I just tried it and luckily it did work.

I just don't know what other path I would have gone down if it didn't work. And are they expecting you to be on this treatment for life now? Well, obviously not because I do want to have children at some point, but that's another worry. Fertility will it affect the way my body will be able to conceive? I don't know. I'm just kind of taking it every step at a time and kind of just reminded myself that my quality of life is better because I'm on the medication at this point. But what will happen when I do want to have a child? I don't know.

So it's really interesting because I was saying to you before we started. of recording that I see a lot of people with endometriosis in my hormone clinic and a lot of people, in fact, I've never met a woman with endometriosis who has a normal testosterone level, often the testosterone is low. We don't measure progesterone levels, but a lot of women have low progesterone as well. And those two hormones really reduce inflammation in the body. There's been studies for many years actually showing that women with endo are more likely to have low testosterone. and testosterone is a really important hormone for women and for men as well.

And a lot of women, if they have the right dose of hormones, especially progesterone and testosterone, can be absolutely transformational. And I've seen so many women who have had many, many of their symptoms of adenomyosis and endometriosis really resolve with those hormones. But it's beneficial for their future health because it's not blocking hormones. So people don't have. symptoms enforced on them, of course. Some people need estradiol as well, and people always concern that the eustradal can stimulate

the endometriosis, but if you've got those other hormones as well at a constant, even level, then often you don't get that fluctuation, and people feel a lot better. So it really worries me that so many women are just been told, oh, just block your hormones, or they think they've tried hormone treatments, whereas they're not hormones. Yeah. So it's really important that people know the difference because our natural hormones will not reduce fertility at all. They're just literally topping up what's missing. And there are a lot of people who are younger who have not quite enough hormones.

They might have enough to cause periods, but not enough for the body to function properly and our immune cells to function properly. And we know our immune cells work a lot better. and they've got hormones present, as in the natural hormones present in their bodies. So the more we can do things ourselves with the hormones being balanced properly, the better. Yeah. And a lot of people will try, and I'm sure you do as well, with their nutrition and exercise to reduce inflammation. But if you're in a lot of pain and discomfort, I feel awful. Yeah, it's easy for me to say go and exercise, but you can't if you're having symptoms.

Yeah, it's tough. And what came to mind there where when you were just speaking is the hormone levels and the investigation towards that. I don't think I had a hormone level test until further on in the diagnosis. And I was fortunate enough to go private for my second surgery. And the first one I had was on the NHS. And a lot of my community and a lot of thoughts that come up is that no, not every, can go privately and the NHS is the only way that they are going to get their treatment and their diagnosis and it just is a bit scary that you aren't getting the investigation like

up front for the hormonal levels for example and that the first thing you're being told is to go on to go on the pill to have the coil inserted for example when I was about 19 like one of the first appointments I had. I think I actually presented to A&E, not knowing why I was in so much pain. And, oh, no, it can't have been because at this point I knew I had endometeosis. It was quite soon after I'd been diagnosed, actually.

The doctor said to me, and you know, like a lot of ladies, the endometriosis gets better once they've had a baby. But I was 19. I went away and I was like, they're not expecting me to get pregnant at 19, are they? And in my case, that wasn't, I was in education, I was having a degree.

But you know why it gets better when people are pregnant. It's because of the hormones. Yeah, of course. So it's a lot easier to give the hormones and to get pregnant. And I've spoken to a lot of women who've been told by their doctors get pregnant and you will improve. But that is just a ridiculous thing to say as a doctor. Yeah. So have you heard similar stories from other people?

Absolutely. I mean, I'm very open online. with my journey and I've documented both my surgeries so from being diagnosed to having my second diagnosis of adenomyosis and the kind of following I've grown has been people also seeking diagnosis and finding their journey similar to mine and I just hear so much about getting pregnant or being put on the pill the coil the implant being turned away unfortunately it happened to me early days quite a lot and the misdiagnosis is one thing that stands out quite boldly to me and looking back having my appendix out because

I was in such pelvic pain at age 1314 that was probably because I was experiencing endometeosis symptoms but that is the reaction that the doctors and A&E had when I presented it's appendicitis get the appendix out and I hear so much. So many people have had their appendix out that have been seeking endometeosis diagnosis. And do you hear any positive stories from people? It's hard because to get to a positive, there are loads of negatives

and I feel like that's why the diagnosis length is so long. I think it's pushed to nine years now, the average diagnosis length, which to me is crazy and it makes me grateful that I only only had to wait five years. years but for all of that to get to that diagnosis point there is negatives and it takes a mental toll on you. Of course it does and you know I was a GP for many years and I look back and I didn't know what I know now about hormones and hormones treatments and I always want to help the people in

front of me and you know often if they have to be referred for investigations I have no control over the weight of time. And so I would give people contraceptive feel because I thought I was giving them hormones and I thought it would help them feel better. And they might have felt like, you know, a little bit better for a short period of time. But I then realized I wasn't really helping them. And then in medicine, I always go back to the books and go back to the basics and think, what else can I do? What can I do differently? And then when you start to understand how the natural hormones work in our body and the big effect when they're not balanced, then it makes sense. and then going back, like I say now in our clinic,

we give the natural hormones at the right dose, and it really does make a huge difference. But often in medicine, people don't think they just do what they've been told. And this is what's happening more and more. And, you know, I feel that a lot of people with endometriosis don't need surgery. They don't always need every single test under the sun. You can often make the diagnosis from a really good, clear history, because there is often a change in symptoms throughout the menstrual cycle.

And even people that end up see bowel specialists, you take a really clear history of their pain and realize at certain times of the month it's a lot worse than others. We've got to exclude a hormonal imbalance. And a lot of people with endometriosis also have other hormonal conditions like PMOS. They might have PMDD. There's a massive overlap. But again, it's just names and sort of work.

that basically means there's a hormonal disorder going on. And so underneath all of this is in a hormonal imbalance that needs addressing. So I feel like one problem is it's taking so long for diagnosis. But the other problem is in those four, five, nine years, however long it takes, women are just left. Yeah. Whereas if they had their hormones balanced, then they might not even need to have all these tests and all this suffering.

But it just feels like, while people are waiting for diagnosis, nothing gets done or they just go on painkillers. Yeah, exactly. The painkillers is a big one. The amount of different painkillers, the anti-inflammatory medication that's prescribed to you. It's a case-by-case basis, really, isn't it? Of course. Because, I mean, I don't know what the teachings are for doctors and things like that, but for some conditions it is a textbook answer.

Like you have this, so take this. or you have this, so do this. Whereas endometriosis or other conditions within that umbrella, it is case by case and it might be someone's hormone level. Like you just don't know. And it's harder to just off the first appointment say, oh, this is what you need to do because there's a lot of investigation needed. Of course there is. Absolutely.

And that's where there is an art in medicine as well of individualising care. And the problem is even, you know, with 2026, doctors, still get scared of women because we're just like a nuisance because we've got all these symptoms that don't fit into a clear diagnostic box. You know, if someone, it's usually, you know, how we learn in medicine was always based on men, but if it was a man having a heart attack with a very classic central crushing chain pain on the left side of the chest going down the arm, then you immediately go to the protocol of what drugs to give them and how to make the diagnosis. When you have a woman sitting in front of you who, who,

got a bit of pain and a bit of tiredness and a bit of bloating, there's no clear pathway. And then doctors then get a bit worried and then end up saying, well, I'll just refer you. But we know that the waiting times are huge. We know that it's not feasible for people always to go private. And even privately, you still got to wait. And you might not see the first person who really understands your condition either.

So in the meantime, I feel very strongly that women should try and get as much information as possible and ask and see about hormones, knowing there's a difference between synthetic and natural hormones is really key. Yeah, and I think that's it. It's about knowing. I was 19 when I was diagnosed and I had no knowledge on what endometriosis even was,

like prior to that. It was actually from posting a video. I was very open in my college days and I was just saying how sore I was. I couldn't go into college that day. I had such crippling pain. that I was actually in bed I had to take the day off and I documented that and someone said

well that's not normal like have you thought it could maybe be endometeosis so that's what started my interest in endometeosis and I was like maybe it could be and anyway I just brushed it off I was like no like I don't have all these symptoms like my periods weren't heavy

I couldn't match my experience to what the classic symptoms were so I was like okay like maybe I don't maybe maybe I'm just being dramatic. And I heard that a lot. Like maybe I'm just being dramatic. And it's actually then when I went to see the college osteopath who specialized with dancers because I went to a dance college. And he was like, I can't recreate your pain. It's not structural. You have like something going on that's deeper than actually like your bones and your muscles and your joints and your tendons. This is like autoimmune. So then he

sent me away and he was like just log like when like a pain diary basically like a pain log and then I brought it back to him and he was like yeah um I think you might have endometeosis you need to go to your GP and ask for a gynaecology referral and from that I mean that's amazing a diamond in the dust that osteopath I must give it all to him because he's the one who pushed me to to go back and at that point I'd been to the GP so many times I'd been to A&E so many times endless waiting in those like you don't want to be an A&E if you can help it.

And did anyone ask about like the osteopath did anyone ask about how your symptoms change throughout your cycle at all? Yeah he was like well when does it flare up like where is the pain and it's then when I was like oh no it is linked to my menstrual cycle but other doctors hadn't asked you

your GPs hadn't asked you to try and tease out whether it was linked with your menstrual cycle not really and it got to a point I must admit that the pain was quite constant. So it was harder to pinpoint. But when I did narrow it down, it was like coming up to my period or when my period would have. And it's really important.

You know, we've got balanced app and people can monitor symptoms. Yeah. And just doing symptoms at different times of the cycle, working out where the cycle is or where periods are. If people are having them can be really useful. And it's hard, obviously, people on contraception. or a marina coil, but looking to see any pattern is really, really useful. And women trying to work it out, because they often can work it out quicker than doctors,

it's fine. You know, I think as doctors, we need all the help we can get from patients. But if we can try and understand more so people can get signposted to the right diagnosis, but also the right treatment pathway and maybe ask for a different treatment or a hormone blood test, like I say, testosterone blood test, rather than being told it's normal, get the actual result, work it out if it really is normal or whether it is low, can make a huge difference. Absolutely. There's a lot that needs to be done.

But it's great that you're so vocal and I'm very grateful that you've come and shared so much today. I always end with three take-home tips, though. Okay. So three things, people might be listening who might have potential endometriosis or adenomyosis or they might have a friend or family member or work colleague who thinks have it. What are the three things that you would suggest that they do to try and get an earlier diagnosis and better treatment? Okay. I think, first of all, trust your instinct, to trust your own body. If it wasn't for my gut feeling, I wouldn't have gone back to the GP.

I wouldn't have gone back and asked for that referral. So that's number one. That would be to trust your instinct. Do you know your body better than anyone else does? You are the only person who can feel what you're feeling. Secondly, I would say talk to people about how you're feeling. Talk to people at work. Talk to people if you're at school.

Talk to your teachers. The staff, talk to your parents, talk to friends, family. Make them aware of how you feel because I think early days I didn't and I'd just try and get on with it. And then I'd find myself having to leave class at school, like going to the medical room, getting a hot water bottle because I was in so much pain. and because I did a lot of dance at college,

like not being able to finish a class and not been able to take part, being sat on the side, not being able to go in. And my teacher's being like, what is going on with Matild's like, is she being flaky? Does she not want to take part in my class?

But opening that conversation and letting them know, oh, I'm being investigated for endometriosis. It just makes it all so much clearer and they're on the same page, even in a workplace. I've not had a job where I've had to go into an office. So I don't know how that would present in a workplace,

but telling your boss, telling your manager, people who are around you can just make it so much more understandable and being like, oh, that explains why they need to go and make hot water bottle at this point or whatever. So talk to people. And thirdly, oh, this is hard. I would probably say, do what's best for you.

it's a case-by-case condition as we've just discussed. As much as it's helpful to see what other people are doing, try different things, speak to different people and just see what works for you. Like, for example, I'm not going to go and get the coil because so-and-so is on the coil. I'm going to do what's best for me because it's case-by-case.

My treatment might not correlate to their treatment. That's brilliant advice. So thank you so much for coming today. Thank you so much for having me. It's been enlightening. Oh, good. Thank you. Thanks.

So just a quick one, it would be really great if you could follow or subscribe to this podcast. This will really help me reach more people with evidence-based information about hormones and their future health. And it also ensures that you'll never miss a future episode. Thank you.