@gr8fishingmadness I am a NICU nurse and I cannot tell you how truly common this is. If you have Speech Therapists available to you in your NICU, ask if they can help you with strategies to optimize your baby's feeding. But truly the biggest factor is time. It's a tough skill to learn as babies have to master the art of suck, swallow, breathe coordination and that is no easy feat. It's truly a workout for them every 3 hours, mentally and physically. It takes time, but the magical thing is after feeling like nothing is happening, all of a sudden they get it. A baby who I could get to take 3ml a feed, and was only waking for 2 feeds in my shift will suddenly be ad lib and PO feeding all the next time I come back after days off. Eventually it just clicks.
It's nothing you are doing wrong, it's nothing you're baby is doing wrong. There may be some tips and tricks that could make minor improvements, but time, brain maturity, and oral motor skill development are the real drivers of feeding, and it's something that we truly can't control or predict.
I feel like sometimes parents have an easier time wrapping their head around a very obvious medical reason that baby is still in the NICU (I.e needing oxygen, recovering from a surgery, antibiotics or fluids, etc...), but something about feeding being the thing holding baby back from discharge just feels so frustrating because eating is one of the easiest, most second nature, thing to us having done it our whole lives. and especially when term babies who had more cook time in the oven, come out sucking down bottles with no issue. It's so hard. My heart goes out to you. Your baby will get it. You guys will go home. It just takes far longer sometimes than we all hope.