You probably have atrial fibrillations which is a very common heart problem. The upper chambers of the heart quiver rather than beating in rhythm. This complication comes and goes and usually is not a problem but it does raise your chances of having a stroke
which can be a major problem. You might need to take a daily aspirin
or blood thinners. You are young for atrial fibs but it is certainly not unheard of. Also atrial fibs have a genetic component so possibly your mother has the same problem. In any case you need to see your physician and see if you need a beta blocker
to slow down the fibrillations and/or a blood thinner. Stress
or too much caffeine can trigger A fibs, so relax.