Heart problems?

[aflaba]

Why am I asking about heart problems here? Cause I don't really think I have any. I'm looking for reassurance that everything is ok. If I don't get it I'll have to rethink through.


Most of the time I don't feel my heart beating. It's just there doing it's job. But sometimes all of a sudden I can feel it beat inside my chest. I think this is normal. Is this normal?

Just now I was lying in my bed trying to sleep when I started feeling my heart beating. Then unexpectedly it started beating super-fast, like 3 times per second for ten seconds or so before everything got back to normal. Is this healthy, or should I suspect that my heart is not in good health?