Baby eating

Ashley

So my baby is 2 months old born at 36 weeks. She eats about 20oz a day and wasn’t gaining a lot of weight so the doctor had my make her formula more calories and add it to my breast milk (I pump). She’s still eating 20oz a day and no more. I try waking her up to eat and she just doesn’t want to. I feel like at least she’s getting more calories. Anyone else experienced this?