Forearm Pain

There is a shooting pain in my forearm every time I throw the baseball with force. This pain has cause me to drop from around 88MPH to around 80MPH. Does anyone know what the problem could be?

it could be many things like: OVER THROWING {just using the arm}

It could be bad mechanics not throwing with the body the right way. It could be an injury.

Get a video of your pitching and GO SEE A DOCTOR that has an understanding of arm injuries in baseball.

Typically, the pain you are describing suggests ulnar collateral ligament involvement.
See your orthopedic doc!