I have some stabbing pain in my left shoulder, right where the arm and shoulder is connected, at the front. It hurts like when you hit your elbow. Not fun. I don't have any restricted motion, and the pain is not motion activated. It just comes and goes. I think it's a pinched nerve from how it feels. I have been using a heating pad at night, which seems to help, but this has been going on for almost a week now. What would be the best course of action? Massage, chiropractor, acupuncture? Any recommendations? Anything else I could do?