I was diagnosed coeliac at 39, and by 42 I was deep in perimenopause too. Separately, either one of these will knock you sideways. Together, for a while, I genuinely couldn't tell which symptom belonged to which condition, and there's remarkably little written about the overlap.
The tiredness gets confusing
Coeliac fatigue and perimenopausal fatigue feel almost identical: that heavy, can't-keep-my-eyes-open, no-amount-of-sleep-fixes-it exhaustion. For a while I assumed every bad day meant I'd been "glutened" somewhere, when actually it was hormones doing their own thing. Now I try to track both, what I've eaten and where I am in my cycle, because untangling the two has genuinely helped me stop panicking every time I feel wiped out.
Bone health is a bigger deal for us
Coeliac disease, especially if it went undiagnosed for years like mine did, can affect how well you absorb calcium and vitamin D, which matters even more once oestrogen starts dropping, since that's also when bone density naturally declines. I asked my GP about a bone density scan (a DEXA scan) after my diagnosis, and I'd genuinely encourage anyone in the same boat, especially in perimenopause, to ask rather than assume it'll get mentioned automatically.
Brain fog, but make it double
Coeliac disease can bring its own brain fog when the gut isn't absorbing nutrients properly, and perimenopause brings a well-documented fog of its own. I lost count of the times I walked into a room and forgot why. It's not just you, and it's not just "getting older": there's often a real physiological reason for both, and it's worth naming that rather than just laughing it off, even if you still laugh about it with your mates.
Socialising gets harder, not easier
In your 20s, being the person who can't eat the cake at the office party is a minor inconvenience. In your 50s, when you're also dealing with hot flushes, mood swings, and a body that feels unfamiliar half the time, being "the difficult one" at every meal out can wear you down more than it used to. I've had to get better at just saying "it's a no from me" without over-explaining either condition to people who haven't asked.
What's actually helped
- Tracking symptoms against both my diet and my cycle, loosely, in a notes app, not obsessively, just enough to spot patterns
- Asking specifically about bone density and vitamin D/calcium levels at check-ups, rather than waiting to be offered
- Finding the other coeliac women further along in perimenopause or menopause than me: there are more of us than you'd think, we just don't always find each other
- Giving myself permission to say "I'm having a rough one" without assigning it entirely to gluten or entirely to hormones
If you're in this exact overlap right now, recently diagnosed coeliac and also somewhere in the perimenopause fog, you are not imagining the way these two things tangle together. I wish I'd read this five years ago; hopefully it saves you some of the confusion it took me a while to work through.
I'm not a medical professional. This is just what's worked for me. Always check with your GP, and see coeliac.org.uk or the British Menopause Society for medical guidance on either condition.