Elbow hurts

When i pitch at 100 % my elbow begins to hurt after 10 balls. no shoulder pain, so i think i’m not overpowering.In the past i’d got elbow and shoulder pain because of overpowering. is it a strength issue?

gr,
Justin

(I’m 17 years old)

Get checked out, you shouldn’t be experiencing any pain after that few pitches…throwing hard or not.