I am experience a very strange pain in my right upper arm. It is like having a bad tooth ache or maybe a boil. No problem using the arm and does not hurt to pick up, or raise my arm. It is like a continual ache. I went to the clinic, but x-ray showed nothing significant. Muscle relaxes do not help much, Ibuphrophen does, but I should not be taking it often. Any ideas, or anything I can do or ask about?