Has anyone found their baby became a completely different person when they turned 5 weeks? My daughter turned 5 weeks yesterday and omg the fussiness and feeding! She's never been a big eater but suddenly she now wants feeding every 1 to 2 hours. Struggling to sleep and stay asleep and last night was fussing from 2am till 4.30am which is not like her- she settles well usually. It's got me down today as i feel I've been struggling to give her what she wants and keep her content. Anyone experienced this? Think its a growth spurt? Mental leap of some sort?