G.S.
L.,
Try not to worry, as many people have heart murmurs that have absolutely no ill effect on their health or long term negative effects on their heart. It should be checked out though. I made the mistake of researching my 9 yr. old sons irregular heart rythm on-line prior to taking him to the Pediatric Cardiologist and had myself in tears. I worried for weeks before his appointment. At his appointment (after some testing) we were told he does have an irregular rythm, but not to worry it won't have any negative long term effects. Best of luck and think positive.