I was practicing back tucks and my shoulder started to hurt?
Ok so just a few minutes ago I was out on my trampoline practicing back tucks, (back flips,) but everything was fine, and then I did one more backflip and my shoulder started to really hurt, so I stopped and came inside. It still really hurts and I don't know why. I can rotate my arm and it doesn't hurt. I don't know what happened.. help?