<<Disclaimer: Verify this information before applying it to your situation.>> I've been experiencing pain in my upper left arm at night for several months. I used to have bad shoulder pain, but that has disappeared and now I have pain in my arm. I sleep on my right side, but maybe I'm doing something. The pain sometimes spreads to my lower arm and even my side. The pain keeps me awake. It is different than when I had firbromyalgia which was there all the time. It seems like whenever I get worried about it and decide to see a doctor it disappears. I was wondering if anyone has had these symptoms and if there was a reason to worry about it. I see a doctor in August. Suzanne