Hi i have been on Fermara for breast cancer for the last 2 years. The side affects of gaining tons of weight very bad pain on feet and hands and also losing my hair like chemo and not regrowing back at all. Off the pill for 2 weeks and starting new prescription of Arimidex tomorrow, My ? is what are the side affects of this pill. Please tell me my hair will regrow lose weight and the bad pain in hands and feet will stop, Sorry for asking i thought I would get an answer didnt think i had to pay .