HELP!!! My 1 year old was colic so all I heard was screaming. My 6 week old may be going through a growth spurt...he's been fussy the last few days.I breastfeed/pump he eats 3-4oz every 3 hours...now he seems hungry every 1.5-2. Seems hungrier, doesn't sleep long, how can I tell if it's a growth spurt?