Good luck discussing it with your Oncologist. Mine did ot want to take any responsibility for the aches and pains at all and wanting to change me over to Femara or something similar. I figured I would stick to the "one challenge". I have learnt to live with my pain by using minimal pain relief and keeping as active as possible. I have found that with any medication there is always some kind of side effect. My specialist surgeon encourages me to keep taking Arimidex as it appears to be keeping the bc at bay. Good luck XLeonie