My hair hasn't been great since my 20's - I was diagnosed with polycystic ovaries, then. I never had excess hair, but my scalp hair has gradually and noticeably thinned over the years despite trying all of the suggestions out there. Was kind of grateful I had as much hair left as I do. I'm now 51. (Also suffered with acne and am still often spotty.)
Started HRT last year. Started at a low dose, but oestrogen levels continued to fall. Increased gradually to a 150 microgram patch, and, say, four weeks ago, to a 175 microgram patch.
Over the last few weeks, the hair thinning has really, really ramped up, evidenced by the amount of hair in my hair brush and the shocking amount in the shower drain catcher thing (sorry, tmi). I don't think I'm just being paranoid. My hair has just completely lost any remaining weight and heft.
I'm due blood tests in November, ahead of a repeat appointment with a private HRT doc in December. I doubt I can bring that forward, as her availability has been impossible, but I could try. For info, my ferritin was 78ug/L in May this year, oestradiol was 103pmol/L, and testosterone was 0.5nmol/L.
Google largely flags oestrogen as being good at arresting hair loss, with some exceptions, and I'm wondering if I'm the exception. It could of course be completely unrelated and this is the androgenic alopecia that was always going to be in my timeline because of my PCOS. There's no 'good hair' in my family; my sister and mother don't have PCOS but have thin hair. My brother was bald by his late 20's. I've also had some significant stress and chronic pain due to an injury, for info, but that's about a year old.