Crying For No Reason

Baby girl just keeps crying today. She’ll be perfectly fine, then start crying. There won’t be anything wrong... I don’t know what to do.

Only difference is she has a little rash on her bottom and I fed her some baby food apples today. (Literally only one bit was actually swallowed...rash came first not a normal diaper rash)

She wouldn’t nap and now she’s not going to sleep for the night. I literally had to step outside for a break and leave her with her dad. I can hear her crying, though. It’s killing me inside but I just can’t handle it anymore today🥺