My daughter will be 12w on Monday. She recently has become very fussy pretty much all day! She was so smiley and talkative the last few weeks then boom! She still sleeps great at night and has never taken many naps during the day. Our routine hasn't changed. She hasn't been pooping much so I wonder if it's her belly bothering her. I'm nervous it may be because of my dairy intake. I'm screwed though because I have a entire deep freezer full of breast milk and I've been obsessed with milk since I got pregnant! I hope it's not that. Then I thought somehow early teething because of how much she drools and wants to chew on my hands! Growth spurt? Anyone else??