Bottle aversion

Humna

I have a four month old baby girl...she had severe colic in the first three months but now she has bottle aversion...she is underfed because of this..consulted many doctors...some say she has acid reflux and some say she developed food aversion...i am very worried as her intake is not what it is supposed to be...

Can someone guide me in this regard...super tired and stressed all the time because she poorly sleeps due to her low intake.