So, my baby's tummy was distended (28cm). They did an ultrasound and saw bubbles and they stopped her feed. She is on SiPAP and they had her pressure pretty high (10/4). They have since turned it down and they did bicycles with her and she had like 3 diaper fulls and her tummy went down to 26 cm. Now, 24 hours later, her tummy is growing again and she hasn't had a bowel movement. She has never had this problem before and she is on enfamil HMF and my breast milk. She weighs 3lb5oz. I'm really worried.