Alright so we have dodgeball teams at school now. I was throwing the ball like mad..and now today like i felt it later in the day around 1pm..My right bicep HURTS, like sore/hurts. This is from throwing as we were playing football after dodgeball and I was throwing the football a lot and my right bicep was really hurting. Is this because I'm not used to throwing stuff. Could this be somewhat beneficial cause like..adds a different stimulus? Why has my arm gotten so sore from throwing. My biceps arent weak either or anything..so this is weird.