Definitely talk to your surgeon. If you notice swelling in your arm, you might see about getting a prescription for lymphedema therapy. They work work wonders and will teach exercises and massage techniques to help quell the swelling if that's what it is. Did you do immediate reconstruction? If not, you might also ask for a prescription for prosthetics, which really helps with self image... Not really related to the pain, but something I went for months without after a failed attempt at reconstruction because I had no idea!!