Mitral valve prolapse (MVP) can be found accidentally in completely healthy individuals or to be a part of some disorder that causes degeneration of the valves.
MVP is often manifested with palpitations or has no symptoms at all. Palpitations are due to the heart rhythm disturbances (extra-systoles). They are usually treated with beta-blockers.
Echo-cardiography is requested to diagnose the condition and measure the level of mitral regurgitation.

yes, I have been positively diagnosed with MVP with echo. My MVP is characterized by mild regurgitation. I am a healthy young woman of 33. My question is concerning the possible reasons why laying on one side (my right side) effects the palpitations more than the other side.

Thanks!

This is really strange and difficult to explain. But at least you know how to prevent palpitations (by laying on the left side) without using medicines.