strk3, N2VW,
Throw me into the mix also. I am finally seeing a good (maybe the best) cardiologist today....nervous as a kitten.
It's been 10 years of worry whether it's heartburn or cardiac ischemia. Since it's brought on by a burst of excercise and passes in minutes with rest, is often horrible walking into a cold wind or bolting to cach a bus, the evidence seems to point to cardiac to me. Occasional radiation to both shoulders and I can best describe it as a "griping burn"....not a crush, but a bit of a squeeze but always an INTENSE burn with breathlessness.
It sort of also seems like some kind of bronchial burn.
I guess I really can't rest til I have some sort of angiography...all the rest is aimless guesswork.
Past testing included treadmill echocardiography which to me looks like they can definitely prove that I have a heart and it beats

.
Diagnosis: pain probably not heart related.
I really don't want the correct diagnossis made at autopsy!
More later but, guys, isn't NOT KNOWING the most AWFUL situation.
I've since controlled my lipids to superlative levels, don't smoke, very low homocycteine and C-reactive proteins....but those are risk factors not diagnoses.

Just not reassuring enough.