Hi belle18

I was diagnosed back in 2018 and placed on tamoxifen. I only lasted 9 months on it due to the side effects. Thankfully I was post menopausal and therefore changed to Anastrozole. It also came with side effects but they were less than tamoxifen and managed to tolerate it. I was taken of Anastrozole 6 months early due to a dexa scan showed bone density loss, which is a side effect of Anastrozole. 

You don't mention your age or if your near or going through the menopause so not sure if you're a candidate for Anastrozole. I do however remember when I was taking Anastrozole, there was a brand that suited me better, so perhaps asking for a change of brand may help.

I suggest you have a word with your GP and go from there.

Fingers crossed this will get better for you.

Belle iM also 3 years on tamoxifen I suffered bad for two and a half years the last 6 months side affects seem to have disappeared, my weight gain crippled me so I joined a gym and recently lost 2.5 stone this had helped me massively . 
I also take lots of supplements and I now feel brand new hopefully this will happen for you soon xx love Lara take care x