Spasms can come on at any time. I have them at night a lot and the pain with these spasms is the exact same as with the angina from exertion. This is why I didn't realize I was having a heart attack in Feb. No difference. Like Ed said, though, a trip to the doctor would be wise. Take care, Ally
The most common angina symptoms come on with exertion. For example, it could be that you are relaxed in a chair, then get up and start walking. The sudden increase in oxygen demand by the heart could initiate angina. It could take more exertion, such as walking up a flight of stairs, or several flights. It depends how bad the blockages in the blood vessels of the heart are. When the angina is felt, standing still or sitting down usually sees the angina disappear, and quite quickly, usually less than one or two minutes.
ANY chest pains should be reported to your Doctor.