What to do about chest pain after bypass heart surgery?

Hello, my Dad has had three bypasses done January this year. He's had chest pain during the summer and had to get a cath done. They found three blockages (2 were 90% blocked which they got, and 1 was 100 % blocked that they couldn't do much about. He was doing fine, but recently has chest pain. Is this... show more Hello, my Dad has had three bypasses done January this year. He's had chest pain during the summer and had to get a cath done. They found three blockages (2 were 90% blocked which they got, and 1 was 100 % blocked that they couldn't do much about. He was doing fine, but recently has chest pain. Is this normal, what should we do for him, any advice would be greatly appreciated. ( He doesn't smoke, drink, ect.. Eats really healthy, moderate exercise, moderate work. )
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