Over-exertion in lifting objects
EE WAS PICKING UP A HEAVY PIECE OF STONE WHEN HE STRAINED HIS BACK. HE DID NOT MENTION THE INJURY UNTIL TUESDAY AT LUNCH. AT THAT POINT WE WENT HIM HOME. HE WENT IN FOR AN EXAM WEDNESDAY AND S TAYED HOME TO REST OF THE WEEK. HE IS NOW BACK AT WORK AND SEEMS FINE.