could it be colic?

Elizabeth
We found out my baby has acid reflux and he was allergic to the cow protein in my breastmilk so they put him on a Hypoallergenic formula nutramigen and he has done a little better with his gas and is pooping a lot better. But now he everytime he is awake at night it's like he is in pain or something. He crys while he drinks his bottles and will start choking then spit up cause of his acid reflux 😢. But he only does this at night if he wakes during the day he will be fine I'm really confused. Does anybody else have or have had this problem?