3.5 month old milk strike?

I had the same issue. And mine went on for about a week. We had to change bottles, teats, and tried cup feeding. The only time my baby will drink is when he’s falling asleep or when he’s asleep during night feeding. He does better when he latches on directly. But when I’m at work, he constantly rejects the bottle. Just make sure there’s enough wet diapers and try a few other ways to feed your baby. Hope this phase will eventually pass!