I'm 75 years oldand have been diagnosed with stage 2 breast cancer, clear nodes, clear margins. Had lumpectomy, 2 chemo treatments, and 30 radiation therapies. I have been on Arimidex for 9 months. Side effects are horrible, joint pains through my body, weakness, dizziness, headaches, pain around ribs. My oncologist suggest taking Arimidex every other day, not once a day. Will changing dosage give me same full coverage for breast cancer not returning? Either way, this med is killing me. My ONC is not giving me direct answer.