Does he arch his back or cry during his feeding? My baby has reflux and he would do those things and just keep eating more to soothe his throat which in turn made him spit up and hurt more. Vicious cycle
Honestly I never really listened to that whole feeding thing. I felt like if they are hungry feed them. I rather have full baby than a cranky hungry baby.
Seems like quite a bit but my doctor said 5 oz for that age is way too much. My son was eating like 2 oz around then! Every baby is different and he could be going through a growth spurt