3 weeks Friday

Sara

How much should he be eating. Right now he eats from 2.5 to 3 ounces and does fine spits up occasionally but he acts like hes still hungry but when I feed him more he spits up more. Could it be the bottles where hes getting too much air. Right now I use the dr brown bottles but is there any other bottles that I should try with him that will help with the air?