Is something wrong with my baby?

She’s two weeks old almost three and around 3/4 days ago she’s just started crying non stop whenever she’s awake and she wants to eat pretty much every hour. I breastfeed but sometime I supplement with formula because she becomes very fussy and just kinda spits out my nipple and when it comes to formula half the time she’ll drink it but then half the time she’s just spit out the formula as it’s coming out the bottle. I really don’t know what could be wrong since she has a clean diaper, it’s not too hot or cold, and she me fed. The only time she’s not crying or shrieking is when we carry her and rock her. I honestly don’t know what could be wrong. Any help would be great and I have no problem answering any questions anyone has.