Overfeeding

Mone
Baby chewing on hands and crying after they get their usual amount of milk from bottle and burped every ounce is a sign of hunger right? He usually eats 4 oz but he doesn't seem satisfied now unless I give him another ounce. But he's already at 20 oz today and it's not 1pm yet! He's 10 weeks old but somehow keeps it all down. Ftm don't want to overfeed.