Re periods I haven't dismissed anyone's experience as not being their experience, but you can't deny medical fact either.
I said "usually" and "consider" for a reason. There will be some women for whom the reason is as yet undx (it's incredibly hard to get one and there's a woeful lack of education on the subject) or for whom there is no DX ever reached and some women who don't have a reason.
But for many women there is a reason and they shouldn't have to continue suffering unnecessarily.
You do realise steppemum that you saying the mirena coil helped you indicates there may be a medical cause for yours? The mirena is a slow hormonal release device and it's likely those hormones have treated your symptoms.
Also I agree with those challenging the perceptions of those who claim they've "never met" anyone who's experienced "X extremely taboo/private/medically confidential thing"
I don't discuss my abusive childhood (inc csa), medical history (inc period issues and 2 mc), numerous instances of sexual harassment/assault, divorce, instances of disability discrimination, finances etc with everyone. There are many people who think they know me very well who actually know sod all about me!
A few have assumed they knew certain things and have made comments along the lines of "you wouldn't understand" and while I wouldn't claim to understand how they felt, they meant that they assumed I'd not experienced the thing they were talking about when I had.
I'm also aware of a good few instances where friends of mine have been assumed by others to have a "charmed life" when I know they've been through extremely tough experiences. I'd never divulge or even hint at a confidence but I do say things like "you never know what a person has been through" and I've even advised dd to bear this in mind when dealing with difficult people, not to defend them but to remind her people act the ways they do usually because of what they are/have experienced.
As she's matured she's realised more often this is the case as things have been revealed. Eg a girl that gave her a really hard time at school, not bullying but they clashed, turned out to be having a really tough time at home. Once that came out it didn't excuse her worse behaviour, but it meant it made a bit more sense to dd.