Hello! I think the amt of milk is fine so long your baby is not puking out much. Mine started to drink 100ml when he was about 1 month old and currently 1 month 13 days and drinking 120ml. I had checked with polyclinic dr regarding “overfeeding” and the dr said that babies will not be overfed and will know when to stop drinking hence we do not need to worried about overfeeding them so long he/she does not puke out milk. Different babies have different needs, some drink more, some drink lesser. Therefore, i think if he is alright with the current amt of milk, should just stick with it, he might feel hungrier and cry more if you reduce to 90ml
As for not burping, kkh nurse told me that its fine if the baby sometime do not burp as he/she will fart out the gas. Also, maybe you can try burping him 15-30min and if he still nv burp then i think its fine :)
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