EMPLOYEE WAS CLEANING THE OVEN IN THE STAFF ROOM. SHE STATES HER ARM AND SHOULDERS BEGAN TO ACHE. SINCE THAT TIME, SHE STATES SHE HAS FELT VERY WEAK AND UNABLE TO KEEP HER ARMS LIFTED FOR AN EXTENDED PERIOD OF TIME. SHE WAS UNABLE TO EXPLAIN WHY IT TOOK A WEEK AND A HALF TO REPORT IT.