owwwww i hurt my back stomping a ballon in my Global 9 class,and i hurt it more working out,and even more when my friend jumped on me,and now i hurt it the worst 2day by doing Mick Thompson's headbanging style(lead guitarist in SlipKnot)and i took 2 Advil and the pains a lot less worse,but it still hurts like a muthafucka.........................man i wish i'd think b4 doing stupid shit like that..............