My baby boy is 2 months old and weighs 13 pounds 15 oz he was eating 4 oz every 2-3 hours since he was 3 weeks old but had a spit up problem. His doctor said he shouldn’t be eating 4 oz till about 4 months and to cut him back to 2 oz with not nearly as much spit up, I’ve been trying it and he cries after for about 30 seconds and stops. I feel like I’m starving him Bc I’m so used to him eating 4 oz. I feel like since he’s pretty big he should be eating more. What do you guys think?

This is him