EE HAD JUST FINISHED LOADING BOLTER SUPPLIES ON THE BOLTER IMMEDIATELY PRECEEDING THIS INCIDENT.HE STATED THAT ABOUT A MINUTE AFTER WALKING AWAYFROM THE BOLTER HE EXPERIENCED A SHARP PAIN ON THE LEFT SIDE OF HIS CHEST. HE EXPERIENCED NUMBNESSIN THE FINGERS OF HIS LEFT HAND AND HIS CHEST HURT WHEN HE MOVED HIS ARM. UPON EXAMINATION IT WAS DETERMINED HE STRAINED HIS CHEST.