I would say the overwhelmingly usual reason for getting one's heart checked for arterial blockages is PAIN ON EXERTION that can take the form of crushing pressure, or intense heartburn that ofen has a radiating quality into the neck and shoulders and even left arm as the exertion increases in intensity or time.
This is almost always accompanied by SOB (shortness of breath Mr. Panicky.)
The chest discomfort dissipates within 5 minutes of stopping the exertion.
There are many variants on this theme, but I think it can be considered the norm (well, abnormal norm

) that gets people in for elaborate cardiac testing under stress.