Originally posted by TPM:
Good thing that you stopped pitching but you should have taken yourself out completely. 5 games in 3 days and caught for 3 games and then went into pitch?

A pitcher broke his arm while throwing in a game?
JUST a tear or pull in your muscle? Is your coach perhaps a doctor?
And we wonder why our young players have so many injuries.

No one here can tell you what is going on.
I would give your arm a rest for a few days, any discomfort, head straight to the doctor. You just may have done too much in a short period of time.