My daughter has been a NIGHTMARE the past two days. When she cries, it's absolutely ear piercing,…

My daughter has been a NIGHTMARE the past two days. When she cries, it's absolutely ear piercing, and there's nothing we can do to calm and comfort her. Is she teething? I looked at her gums and saw nothing, and didn't feel anything either. And on top of that, she's been spitting up a lot the past couple days and that's really not normal for her to do.