checked in late friday after experiencing discomfort. said he was feeling ill. the thought now is according to sources at nbc news, he didn't have a heart attack, didn't have chest pains, but possibly an atrial fibrillation, an irregular heartbeat and glued retention. s it's the result of the heart attacks he has had over the years. he has had five heart attacks since 1978 when he was 37 years old. quadruple pi pass, ownibypass, y and pacemaker insertion. >> i am hopeful he'll be released tomorrow. be able to go home. he has had coronary artery disease as long as i can remember. and i'm sure he'll deal with this situation the way he has dealt with every one in the