Hard to say..: It could be caused by infection or inflammation, of muscular origin, trauma, or possibly something worse. If you are in your 40's or above (or younger with strong family history of heart disease), I would see your doctor soon to investigate this. I'm sure everything will be fine, but just make sure that is the case. Best of luck!
Answered 6/3/2015
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3 doctors weighed in across 2 answers
A doctor has provided 1 answer
3 doctors weighed in across 2 answers
A doctor has provided 1 answer
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