EE FELT ILL & WANTED TO GO HOME. PAIN IN LEFT UPPER CHEST ALSO. EE LEFT WORKSITE AFTER TELLING FOREMAN. EE DID NOT GO HOME - SOUGHT OBSERVATION AT HOSPITAL. HOSPITAL NURSE NOTIFIED MINE OFFICE AT EE'S REQUEST AT 2:15 PM. MILD HEART WEAKNESS; PHYSICIAN: RETURN TO WORK OK AS OF 1/19/06.