Elbow hurts in sharp bursts of pain, mostly on the inside. i sleep on it like an idiot sometimes. working out makes it worse. desk job too. thoughts?

A common injury : involving the inside elbow is "Golfer's Elbow"(Don't have to play golf to get this).It is a tendinitis involving tissues around the medial epicondyle. Continued insult may occur with curls. Is that when it hurts?First,stop re injuring this area by not doing anything that makes it hurt. A local cortisone injection gives relief but if you go back to same activity that caused the problem, it returns