I m 14, and am having bad pain in one of my ribs. I can t recall receiving a direct blow to my ribs, but my gym class is very rough. To be completely honest I almost threw up because of it. But besides that, could too much rapid movement of the torso cause a rib injury? They make us sprint, and that s the only thing i could think of, as my gym class was yesterday, 12/7/12.