Could you try expressing and see if he will take breastmilk? Then you could rule out if it’s bottle aversion or the formula he doesn’t like
Does he need the next size teat maybe?
@Kristina yes that is a good idea i will reintroduce expressed milk - just so exhausting 🥴. Thank you
@Tanya i have tried this and he hates it
Following as we are in the same boat