How long has it been like this? Wait for about another few days and see what happeneds, if it doesnt get any better then go to the doctor.
Cause once i had the same thing, my arm hurts for about a few days and it didnt get any better, so i told my mum, so she got me to the doctor, and he checked my arm with an X- ray, and he said i got a BROCKEN ARM! you hear that? I HAD A BROCKEN ARM! because i had this real cricket ball hit my arm when the boys was playing cricket and yea