Hello, I was implanted with a Nucleus 5 cochlear implant in November 2010. I have experienced severe muscle pain as well as headaches on the right side of my head (implanted side) since surgery and the pain is worsening. I had a marcaine injection last week and had one day of relief. Sharp pains come and go, I do not understand what triggers it? The area surrounding the implant site swells up at times and causes discomfort. Are these common symptoms? What are your suggestions?