I can appreciate why you say this, Tom, but if I trotted off to hospital every time I had chest / jaw / arm pain I'd be as well taking up residence in a caravan in the car park. I think I've been to my GP 3 times about it and the last one (a different bloke) took the trouble to explain WHY my symptoms were not those of a heart attack. I think they're largely triggered by stress and anxiety, certainly not smoking and coke! and I keep telling myself that, with some degree of conviction. But if you're prone to textbook symptoms and are not having the full blown 'Hollywood' attack you refer to, rather something more resembling the first guy's, how on earth do you know when it's for real?