Hello. Several months ago I had a really bad cough. After a few weeks I noticed that every time I coughed, my right arm hurt. Now, several months later, it still hurts and seems to be getting worse. The pain seems to radiate from inside the back, upper arm, down to my wrist. I ve been taking Advil morning noon and night just to kee4p the pain down. I take 600-800mg each time. What should I do??? Bill B