Are you pitching without any knowledge of what pitching mechanics cause serious arm injury? Don't continue down this road because it only leads to a short career. I tore my rotator cuff at 18 years old and had to rebuild my career back to play professional baseball.
Watch this video to learn how you can prevent serious arm injury or even recover from serious arm injury. If you want more information on pitching mechanics that support velocity while reducing risk of injury then checkout the 3X Pitching Velocity Program at TopVelocity.net.