My 4 month old little boy has always been a good feeder and has slept through the night since 6 weeks. However, recently he has gone from 6oz feeds to now 8/9 oz where I am feeding him every 2-3 hours. He's not a 'big' baby but he is very long. Anyone similar? Obviously advice is not to wean until 6 months. But hes started to become very fussy throughout the day and I'm starting to worry.