Feeding !

Laya

My baby will be 3 months old next week , and she has gotten to the point where she sleeps all night, and wont wake up til noon or later , i was wondering do i need to wake her up every 3 hours to feed her ? Her doctor says i don’t necessarily have to and just let her wake up on her own when shes hungry but i cant help but to think she is starving, do anybody let their child sleep like that without waking them

Up to feed ?