EE FINISHED A TASK WHERE HE HAD PERSPIRED HEAVILY. HE WENT TO LUNCH IN AN AIR CONDITIONED ROOM AND HE APPARENTLY CAUGHT A CHILL DURING THAT TIME. WHEN HE WENT BACK TO WORK, HE EXPERIENCED CRAM PING IN HIS LOWER BACK. HE CANNOT RECALL AN INCIDENT WHERE HE LIFTED, BENT ETC THAT HURT HIMSELF.