Ow, that's difficult to put up with! I have been on Femara for four years, no problem with hair for the first two, and then suddenly some thinning. Nothing too dramatic, but a lot more shedding than normal. Had everything checked, dermatologist too, but couldn't pin it down to anything particular. It's stabilised now for 18 months or so. I still shed a bit more than I used to, but within normal daily limits, and my hair isn't thinning. So I am just gritting my teeth for another year!! It could of course be age, or more likely I think it's a combination of things. I hung on to my chemo wig though, just in case