I have a 12 week old daughter and starting about 5 days ago she has started to be very fussy. She acts like she is hungry all the time, and sucks and chews on her fingers. She will eat her normal sized meals and still cry and act like she is hungry afterward and when I try to feed her she doesn't want anymore. She also does not want to be laid down. It doesn't matter if it is in her crib, on our bed, or on the floor with her boppy pillow. She just screams and screams. The only thing I can think of is that she might be starting to teethe but as my husband pointed out she is still kind of young for that and she hasn't been drooling at all. I don't know what to do but try to comfort her but even that is hard when she is screaming in my ear.
What else could be ailing her and what can I do to help her?