I had my attack in the sacramento airpoirt I was going into the mens and I almost passed out leaned against the wall.
Flew home to SoCal without more pain; a 1 hour flight. My doctor had a 24/7 clinic. It was Columbus Day but they were open. He said you probably have a stone He admitted me to the local hospital because I lived alone. The next day the stone had passed and there was a cardiologist in the room. When did you have your heart attack he asked. But that is a separate story
Oh my! That really would scare me.