Been for a long sauna at my local health club, when I say long only 10 mins at a time but about 4 times. The 4th time I got a real chest tightness which spread to my left arm, so I came out, showered and left.
The pain subsided, but just now it came back nearly as strong, and I'm scared. Not least because I just googled chest pain sauna and it gave me intricate examples of similar symptoms in other people using saunas who had heart attacks up to a few days after the event.
Don't know what to do.