my LO is 7 weeks old. over the last few days he has changed then amount of milk he has. he feeds every three hours. before he was taking about 120 - 160 per feed. Over the last few days this has decreased to 80 - 120. If he has more he throws up. He has a bit of colic which has left him having restless sleeps. This (i think) has led him to be more sleepy during the day so he is sleeping more than he was before. Has anyone else's LO done this?