my husband was given four dx at once regarding his heart. heart failure, ejection fraction of 25-30%, irregular heart beat, weakness of the heart muscular. he continues to work, he is a grave digger, digs graves by hand, sets 280 lbs headstones by himself, lowers 4-800 lbs caskets with one other person by hand, and much more, all out in the heat and cold of the weather. He gets so tired that he falls asleep on his way home and sleeps all the time once home and on his day's off. Should he continue to do this manual labor? I told him to quit and file for SSDI, state guidelines are below 30%, but he is stubburn....is he going to die doing this manual labor?