my dd is 5 weeks old today she has been nursing non stop I am nursing right now!! She has hardly slept and cries when she is not nursing.
I want to say it is a growth spurt but I am not sure. my dh can't even hold her without her wailing.
No real advice but I hope tomorrow is better. It is really unpredictable when they are so little.
Both of my boys nursed nonstop at that age when they were gassy. Try bicycling her legs and rubbing her tummy a bit and see if that helps.