Worried about Dad
My father is 66 yrs old, in very good physical health, ideal weight, doesn't smoke, very, very active and happy. He tells me a few days ago he started feeling I'll in the middle of the night. He walked into the bathroom, got sick and collapsed. He was able to crawl back to bed but layed there with the chills an cold sweats all night. In the morning he started feeling better but called his dr anyway. He saw his doctor the next day and was sent straight to hospital for tests. He had numerous tests done that included blood work, EKG, ultrasound, heart monitors etc. he got the results today and was told all was fine, no blockages but that he'd had a heart attack probably caused by a blood clot that is now gone. He has a referal to see a cardiologist.
My question is how much should I worry, is this cause for continuing concern, what are the chances of it happening again? My Dad is in another province but I worry about him. He also tends to down play things.
Thanks for any insight