my daughter is 6 weeks old(yesterday) she was on a 4oz every 4hrs and doing well waiting the 4hrs. her issue was/is screaming everytime the bottle is taken out to burp, and will rarely burp for us, thus leading to stomach pains which wake her up. last night i tried a new tactic; i cluster fed her and she went to bed by 9, 11 we dreamfeed her, she woke up at 345 to be fed. at 6 i heard her cough, then gag then i heard her gasp and take in a huge breath, so i went it, picked her up patted her then she let out a huge burp and projectile spit up everwhere. so, i think maybe she got too much? but then when we stop feeding her she screams? now i am doing 3oz every 3hrs(doc suggested after my phone call this morning) but, she still cries then, too.