We were feeding her every 3 hours, but she seemed hungry, so we started feeding her whenever she seems hungry, which sometimes is 3 hours and sometimes is 1. She always eats all that we give her, but since we started doing this she has gone from a sleepy newborn to screaming nonstop. She's too young for traditional colic (she's a preemie so from what my doctor told me, colic would come at about 5 weeks of age if it comes), so why is she screaming constantly? She now seems hungrier than ever, constantly sucking on her hands and wanting food. She'll eat round the clock.
Any ideas or advice? We haven't slept at all (and neither has she) in days.