I have been diagnosed with a non-cancerouse mangioma tumor by my collarbone and across the top of my shoulder. Multiple biopsies were taken and all were negative. Before having the biopsies, I had no pain or discomfort. It has been almost 6 months since the biopsies and now have not only continued discomfort in the area where they did the biopsies, but often have pain down the arm and into the neck and behind the shoulder blade. Should I be concerned or is this more than likely my body's response to the multiple biopsies? (They were very painful and it took more than ten tries with a guided needle to get enough tissue to do the biopsy)