Could be some adhesions built up in your triceps as well if avoiding full elbow extension is pain free. Try some self-massage in these areas http://www.triggerpoints.net/muscle/triceps-brachii using a lacrosse ball but avoid the origin/insertion.
Probably some medial epicondylitis. Might try a band of sorts. Didn't bother me yesterday so I'm just going to avoid things that hurt. Shocking. Lol.
Surgeon asked, "Have you been golfing bro?"