When the heart is distressed or not meeting the oxygenated demand of the system there no absolutely no way to distinquish the discomfort from any other benign or not so benign conditions. Apparently you have a history of coronary artery disease based on your post so it maybe prudent to have an evaluation by your doctor. Even if the discomfort does not last for long that is not an indication there is no heart problem nor having had an episode.
Thanks for sharing, and if you have any other comments or comments you are invited to respond, take care,
Ken