We're happy to hear your good news, Xanthippe! What a relief.
Regarding angina and a heart attack: In my case, the angina (several episodes for about five days) brought me to my knees in pain (at home), but the actual heart attack (in hospital) was painless. I would never have known I was having the actual myocardial infarction unless I had been on the monitor and the nurse said, "You just had a heart attack."
Weird.
Take care, Dear.