Crying Baby

I know babies cry a lot and sometimes they just need some lovin'. However, my 4 week old cries/screams non-stop if he's not sleeping or eating. He is on pre-mixed formula since I can't produce what he needs. He has just started being overly fussy since this last weekend and before the formula hasn't been an issue so I don't believe that's the culprit. I cuddle and hold my baby but sometimes that doesn't help at all. I do not believe you can "spoil" a baby too much...so I'm up for being attached at the hip 24/7 if that helps. Am I alone? Is there anything you ladies have tried that helped? I know they have a growth spurt at three weeks, maybe this is a phase or even completely normal? Thank you from a FTM feeling clueless and helpless.