12 YEAR OLD GIRL,HEALTHY, ACTIVE, GYMNAST, BLACK OUT 1 MINUTE, (DIDN'T INJURE SELF NO FALL), CAME OUT WITH 8 OF 10 PAIN IN STERNUM AREA(PAINFULL TO THE TOUCH) EXPERIENCING DIZZINESS, AND HEADACHE WITH SOME CONFUSION. TOOK TO ER, BLOODWORK, CHEST XRAY, EKG ALL NORMAL. DID NOT DO CAT SCAN, DID NOT WANT TO EXPOSE TO RADIATION. 24 HOURS LATER, STILL HAS HEADACHE, NO FEVER AND EXTREME STERNUM PAIN.