My younger brother had something similar happen to him. He was doubled over in pain and nothing would make it go away. He was crying and very much scared which, as big brother, so was I. It passed after a while and the doctor who lived across the street said it was most likely an air bubble.
I thought he was a pansy until the exact same thing happened to me last summer. It was a pain I'd never felt before that was inside your body making it all the more scary if you ask me. It took about 10 minutes to get used to the pain and 20 for it to get bearable. Shortly thereafter it was as if nothing happened. No residual pain or problems like a bruise or muscle tear...it was just gone.
My brother was probably around 12-13 when it happened and I can see how he'd be very much scared not knowing what's going on. I did earn a little respect for him because if he was feeling (at 12 years old) what I was feeling last summer he did better than most. Hasn't happened again and I hope once was enough.
I think he'll be just fine, Rip. We're 2 for 2.
