Could be a number of things. First thing that comes to mind is biceps tendinitis. Have you tried taking time off? Do you need to continue pressing movements for a sport? If not, you may want to consider a week or two of complete rest followed by several weeks of pulling movements only. Once you return to pressing, try using dumbbells only and limiting ROM for a while. Icing post-workout is always a good idea as well.
Good luck.
-C10
|