Damnit, stop trying to scare the guy. If it's something he's been living with for years, his chances of dying from it because he waited a few extra days are astronomically small. Heart problems can be bad, yes, but usually because of the stress they cause on your heart over long periods of time. My advice it to take it easy until you go to the doctor. Don't stress out over it, because that certainly isn't going to help. And don't listen to this guy. you'll be fine for now as long as you don't exert yourself. That means no masturbation. sorry.