Heart murmur?

Yesterday at my daughters 6 month appointment she heard a heart murmur for the first time and recommended us to a pediatric cardiologist although she’s sure it’s most likely nothing .. of course FTM can’t help but freak out .. anyone else have this happen to them? i know there is a million different heart murmurs but i’m just curious.

-we did make an appointment but it’s not till next week-