EMPLOYEE WAS OPERATING A COAL HAULER COMING UP THE DX RAMP. THE TRAILER HITCH BROKE LOOSE AND THE TRUCK REARED UP. WHEN THE TRUCK CAME BACK DOWN, IT JARRED HIM. HE HAS BEEN SEEING A DOCTOR SIN CE THEN AND ON 10-6-00, HE MISSED HIS FIRST DAY OF WORK DUE TO THE INCIDENT.