Sciatic nerve aching -- can it be breast cancer related?

[Shirl]

After 2 years on Arimidex I am losing my hair and Have intense sciatica pain. I made the decision to go off of it, since the quality of life stinks. I have been off one week and Sciatica pain is all but gone. It did start shortly after starting arimidex. Since it does affect the bones I know it is responsible for the pain I had.