@wcuro You're just hyper-in-tune with your body. Most/many of us can actually hear our pulse, especially when our heads are upon a pillow. Or we hear it in our carotid arteries in our necks near the inner ear. I'm about to turn 74 and used to have 'incipient hypertension'. These days, it's more like 117/75 when waking each morning, but from there it's all over the place with activity or emotions. I can be on all fours doing something and, if I'm still a moment and remark on it, I can actually see my whole body rocking back and forth with each heartbeat. There is a lot of force, and a lot of volume, rising up into the aorta and then changing direction around the loop and dropping downward. Just that, alone, will cause body movement, even at rest, and the 'rest you know'.

Let's try this: you should fear if/when it stops. I would listen for my heart beat and wonder when it's gonna stop. Now THAT would be worrying, and probably keep me awake. 😀