Should I seek the opinion of a cardiologist or let it go?

Hello

I was told by my family doctor in 2008 that my youngest daughter has a heart murmur. She was born Sept 28,2005 and currently weighs 34 lbs (5th percentile I believe?) with a height of 41 inches (95-ish percentile). She is sick often and is very skinny (picky eater) but otherwise appears "normal".  The doctor described the heart murmur as "musical" and listened while she was lying down as well as standing up. He said that it "should have changed but it did not" with her position. We went for an echocardiogram and it came back normal. Just last month during her annual check up he again mentioned her heart. We went to a different lab for another echocardiogram (with interpretation by a different physician from the first one). I wondered out loud during her appoitment with the GP if she should be referred to a pediatrician or a cardiologist. What is your take on this? Does this sound like further investigation is warranted or should I accept the results of the echocardiogram? I understand that most heart murmurs cause no problems so I don't want to make mountains out of mole hills but on the other hand I want to make sure my daugher is ok.  Thank you for your time.

[heartfluttersflyawayplz]

if she was mine i would take her to a cardio dr, thats just me, but than you can have the peace of mind you need and he/she can tell you whats going on and what needs to be done