HI, I m 52 yrs old and I think in good shape, about 215lbs, 6 2 tall. My right arm, lower outer muscle/arm has been hurting like crazy off and on for the last month. It s so painful when the pain hits that I cannot even type on a keyboard. Moving my right arm around does no help. The pain is very intense and can last up to 8 hours or more. I take not meds, non drinker, and always pass physical with good results. This pain I have never had until about a month ago and it s getting worse. Any thoughts on what I should do?