My DS is 9 weeks old and will only take 4oz max each feed (he's formula fed). He wants to feed every 2 1/2 hours. He will only stay awake for an hour and a half at a time then gets grumpy and goes to sleep very easily but doesn't have a very long sleep, generally because he wakes up hungry again so quickly. He does much better at night and wakes up two or three times between 10 and 7. He's had silent reflux (now under control with medication). He's a very happy little thing and I wouldn't mind this at all if it weren't for the fact that he's dropped from 70th to 25th centile in terms of weight. When I try to get him to take more he fusses and ends up screaming, yet he's rooting again after 2 1/2 hours. He's my second child and my first was BF and a snacker too, also with reflux. Any ideas on how I get him to take more during a feed?