EMPLOYEE HAS LUMBAR STRAIN. SHE IS A QUALITY CONTROL INSPECTOR AND SHE DOESN'T KNOW EXACTLY WHAT SHE DID. SHE ESTIMATES HEAVY LIFTING OR REPETITIOUS WORK OR GRABBING THE DOOR TO KEEP IT SHUT W ITH THE WIND BLOWING. SHE SOUGHT HER OWN MEDICAL CARE AND DID NOT REPORT IT TO US UNTIL 5/13/02.