Hi Craftymum, Aiden is 5 weeks and 3 days and for the past 2 days he has been doing exactly the same, and wanting feeds every 2.5-3 hours and taking 5oz!!! I was reluctant at first because I thought, surely he can't need it, but he isnt bringing it back up so I'm guessing he is going through a growth spurt. They say they do at around 6 weeks or so. So I will continue to feed him when he is hungry and see how it goes... xx