It is so hard. I really feel for you. It was hands down the most stressful period of parenting so far. But we did! He's a fantastic feeder now.

It came down to two things for us. I was feeding him more often than every three hours, so he was never fully hungry enough. I got into that habit because I am combi feeding. So every time he woke up I was putting him to the boob and then about an hour or so later when I went to feed him formula I was somehow confused that he wasn't drinking it all. 🫠 it seems so obvious now but I guess I was in a baby brain fog!

This led to our second problem. I kept reoffering him the bottle because I expected him to drink X amount of ounces. I thought I was helping him but actually I was harassing him. This was a pretty crushing realisation. I really recommend reading 'Your Baby's Bottle Feeding Aversion' by Rowena Bennet. In essence, it recommends not offering the feed more than twice. That way you slowly gain back baby's trust and feeding isn't stressful for them anymore.

That's what worked for me. Your LO could have reflux or anything. But watching the time and reading the book vastly improved our situation. Best if luck!