My heart flutters and beats 40-50 bpm when i lay in bed. my doctor says i dont have heart disease but this feels abnormal.

Probably benign: When you are in bed all is quiet and it is possible to notice many things about your body and sometimes even hear blood flowing by your ear. A heart rate of 40-50 is nice and slow and may indicate that you are very healthy of an elite athlete. It is uncommon to have such a slow heart beat so your heart pumps a full load of blood with each beat. A flutter is a fast heartbeat maybe 170