dd2 is 11 weeks and, after a shaky start, is still exclusively BF. In the last 2 weeks she has seemed much happier and sometimes goes 3/4 hours between feeds in the day and 5 at night. But in those 2 weeks she has only gained 4oz and has dropped to near the 9th centile. I'm confused about what to do. Does the slow weight gain mean that she is sleeping too long and I should wake her to feed more often, or do the long sleeps mean she's content and I should trust her to let me know when she needs to feed?