I am wondering what is happening at day care has there been any instances of children hitting or any reason that all of a sudden she doesnt want to go, she may want you around more children who are a long time in Day care very often miss their parents a lot could you adjust your hours and be with her more, they soon grow up and she will be at school the crying is a cry of need, Good luck I appreciate its not easy to juggle everything, but children need parents around..