Broken baby

She isn't going through a leap or a growth spurt. She just will not sleep. She is exhausted and it's affecting her eating. We have tried leaving her to fall asleep and she will just lay there talking for hours or just start crying. Not sure what to do. She has no gas left in her, diaper is fine. I'm really hoping this no nap thing isn't a common occurrence because she seems to be doing it more and more lately. It'd be fine if she slept through the night, but she doesn't do that either! I'm losing my mind!