I feel my own heartbeat when i am laying down..heart rate is 72 bpm..ecg is normal..other symptoms 1. I feel my pulse in my foot palm and i think back of my head 2. When i try to sleep i get sudden jerk in left shoulder or chest or stomach sometime 3. I am easily get scared by any sudden sound when i am laying down and try to sleep 4. I try to sleep at 11pm but i get a sleep at 2 3 pm after that there is no problem 4..sometime i feel single strong heartbeat that shake my whole body