My DD is 3.5 and has been going since she turned 2. She recently went into the preschool room so new staff. She used to love going but doesn’t now she has changed rooms. She tells me she doesn’t want to go to nursery and gets upset when we get there. She told me the other day that a girl there hit her in the head and hurt her and that she isn’t her friend but the staff said this did not happen. She holds her wee in the whole time when she is there too and won’t wee until she gets home. What would you do?