Need some MN support. My normally relatively pleasant 5 yo has had a personality transplant over the last few days and become an utter monster. Won't do anything I say, being unpleasant to other children in parks (which makes me feel so embarrassed) and keeps having tantrums (something he's not done for years). Feel at my wits end! Please tell me someone else is feeling like this and that maybe it's just that he needs to go back to school. Tonight my only friend was wine....