EE WAS RE-HOOKING A BASKET ON A CEMENT LOADING SPOUT. THE EE STATED THAT WHILE DOING SO HE EXPERIENCED PAIN IN HIS LEFT CHEST AREA. EE REPORTED INCIDENT BUT DID NOT WANT TO SEEK MEDICAL ATTENT ION UNTIL 1ST DOCTORS VISIT-1/15/03. DR'S PROGNOSIS NO MODIFIED DUTY. 2ND DOCTORS VISIT-6/2/03 - MODIFIED DUTY BEGAN 6/03/03.