Inner arm pain in the left arm 2 in above inside elbow. usually only hurts on movement an feels like a bad bruise deep inside when i do move. causes?

Epicondylitis: You may have a condition called medial epicondylitis also known as golfers elbow. This is similar to tennis elbow but occurs on the inside if the elbow. It usually is painful with movement and can sometimes be painful with wrist motion. Contrary to its name it often has nothing to do with golf. If it's associated with numbness and tingling you may also have irritation of the ulnar nerve.