Hello all! Could anyone give me a quick piece of guidance - how much formula should my 8 week, 9.5 lb son be drinking? He only does 90 ml/3 oz max in 45 mins, 6 times a day. He can go for 5 hours at night between his feeds, does 2 pooey nappies a day and several wet nappies, and has slowly gained weight. Am i mad because i worry that he isnt drinking so much? Will he tell me when he's hungry? His appetite seems to be getting worse, not better. Thanks in anticipation!