Hair Loss

I've read that female hair loss is common and I do see plenty of women of my sort of age (67) with thin hair.
I had a total hysterectomy 12 years ago and my hair has been getting steadily thinner ever since. This is not just on my head, but all over my body so that I feel like I'm going to wind up looking like a huge wrinkly baby!

I've talked to doctors a few times over the years and they were quite dismissive when the thinning was only obvious to me. The last time, the GP said my only option was HRT and I should go away and read articles he recommended on the web. But he also said that I would see that some people say HRT is the best thing ever, while others say don't go near it - not a lot of help! What I have discovered from my reading is that, so far as I can tell, HRT might help, but could also make my problem worse!!

Does anyone have any advise or experience of this?