My LO is 8 weeks old now and has anything from 650-750mls a day. I've found lately the more she eats in the day the later she sleeps at night- which i guess is obvious but in the day she sometimes only drinks 80mls then stops and then I have to wait 30-45mins before giving her another 40-70mls. I've been reading so many people saying their babies who are formula fed and are 8 weeks are easily drinking 150ml in a sitting which I'm now worried is she getting enough----she's 11lbs now and was albs when born….