Formula help!

Shanna • Chase Robert 3/5/18 🌈👶🏻 born 30 weeks 6 days Kidney transplant 2/25/14

Advice needed!! My little guy is on Enfamil AR and is extremely gassy. His stomach gets so hard and he just screams. He was in the nicu for 58 days and was put on this for bradycardia episodes caused by reflux. It seems to help his episodes, but the poor baby is in so much pain. It seems worse when he’s on his back. Anyone go through anything similar with this formula?