I am also experiencing pain...I do not know if it is from the radiation or just normal with double mastectomies. Everytime i put my arms up over my head, it hurts! My left "no breast" is really sore but the right "no breast" is getting a bit better. I asked the radiation MD and he said that it just takes time. I am seeing my shoulder MD tomorrow just on a normal visit....I will ask him for exercises or whatever to see if I can lessen the pain. But....always with a smile and lots of hope that this will get well.