Hummmm: Two considerations: either cardiac awareness, a weird sensation that some people get when they lie down at night in which they simply are aware of their heart beating. Otherwise, possibly a rhythm disturbance. With the latter usually one notes a racing "machine gun firing" experience. If the latter, seek out a health care professional and they can work this up for you. doubt life threatening.
Answered 10/4/2015
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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