One month check up, possible heart murmur

Lexi

4 lbs 3 oz at birth now 7 pounds even 💕 his doctor said he’s gaining more weight then an average baby everyday and that’s incredible for just being on breast milk!

Down side she thinks he has a small heart murmur and I have to make an appointment with a cardiologist. Has anyone had experience with this and everything be okay. He was a nicu baby and had a bradycardia, so I’m worrying. She kept telling me not to because he’s growing so well and if it were bad he wouldn’t be.

He’s happy about his weight gain