My child has been in the same child care since infant care days. She is currently in N1 class. She used to love her school and wave good bye to me. These days, she refused school. She does not wants to wear her uniform and will cry till vomit. Do you think it's just a phrase? The teachers have been telling me that she is good in school. They have no problem with her apart from her being a very picky eater.

Yup I agreed with the answer above. Try asking your child what happen in school or if she can't express herself through speech, you may consider using toys to "role play" to allow her to open up.

could be the change of teachers if she just join N1? otherwise it is the separation anxiety that will last for abt 2 weeks happen btw 15 to 20months

N1 child should be able to express him/herself for their feeling. Be patient and try ask your child, is there anything happen in the childcare?

my son oso like that. is a phase i guess.. he cry and cranky... but after sch.. he will happily running to us. so is a phase ba.

perhaps its bullying? have you asked your teacher about if they've noticed the interaction between your child and her classmates??