Originally Posted by Tony1
Is it possible to have unstable angina with out stable angina? I mean if you have angina symptoms at rest that are classified as unstable wouldn't you have symptoms during strenous exercise like one would with stable angina too or does unstable just occur when not exerting yourself only?
The mechanism by which you feel the angina is due to a progressive reduction in the bloodflow reaching the heart tissue. The normal way it would proceed is that first you would notice "stable" angina, where you could produce the discomfort by repeated actions, such as exercise. If you continue to ignore that and make no changes (like I did), eventually the discomfort will come on at rest. When it starts appearing then, it's certainly more critical because now, even at low demand on your heart muscle tissue, you aren't getting enough oxygen/bloodflow.
If you are experiencing unstable angina, its extremely likely that you will experience it while jogging, or running the stadium steps also. Based on what you described in your previous posts here, I think you are pretty safe in that your discomfort is probably not CAD.