Eeeee... That's scarey. I'm glad you're still here.
The closest experience I've had to that is having a hole in my heart. During an annual checkup, my doctor heard what he thought was a heart murmer, a small noise coming from the heart. They did an ultrasound and found that there is a small hole between two of the chambers that shouldn't have a hole between them. Thankfully the hole was so small they recommended we just leave it alone. So I go on my daily life, simply aware that a heart attack will probably kill me. I stay in good health, far away from heart attacks.
