Heart attack, drivers license, BC

I'm an owner op so no comp. She gave me pain mess and they didn't cause it. It didn't work for the pain long enough and I was in agony in another half hour. That stress and just the stress of the surgery I passed out. Nurse said when she heard the monitor beep she came over, figured I passed out, happens all the time in recovery, heart rate was 30, she laid the head of the bed down and expected to turn around and I'd be on the way back up. She turns around and I'm flat line. Scared the hit out if her. She says they have had heart attacks, and you still have a heartbeat it's just the rythem is all messed up, me... I go flat line.. reboot I guess? My doc say he seen one years ago and they had to drive a needle into his heart and give him a shot of adrenaline to get him going. It's not like TV. If your flat line you have nothing to shock so it won't work to restart you?
I learned WAY to much about it....