In the beginning of the school ball year I started feeling a pain in my bicep when I would throw over 70%. After pitching one game I could not even raise my arm as it was shaking uncontrollably. The pain continued up to my shoulder, and I finally had enough and told my coach. The pain in my bicep has gone away, but when I threw a bullpen yesterday it felt as though there was something in my shoulder. Any ideas on how I originally got the injury, and what is going on now?