Hi. In June, 2014 I Had A Bi-lateral Mastectomy With

Hi. In June, 2014 I had a bi-lateral mastectomy with removal of 1 lymph node under my right arm, followed by chemo. Recently, my right armpit has become rather sore and now my arm is tender with some joint pain in the elbow, wrist, and knuckles. I have an appointment in a little over a week with my oncologist, but was wondering if this is something I need to be concerned with.