Isn't it funny how we all seem to have many of the same symptons, but our doctors always seem to say that " I do not think that this is being caused by the Arimidex ( or any of the other drugs in this cateory)? I have been on this for a little over a year. I have the muscle pain, bone pain, tiredness, bone loss, thinning my hair, etc., but I do have to say that if the medicine is helping in any way that I will continue to put up with these side effects. I am willing to do anything to fight.