DS 4 is normally ok to manage but for the last two weeks has been so difficult, really cheeky, sticking his tongue out when asked something saying 'i want.." no please or thank yous, always saying I'm a bad mum or he doesn't want me to play anymore etc. He started reception last week so I'm hoping it's just an adjusting phase. He's also asked to move class to be with a different friend despite being in class with his supposed best friend, he won't tell me if they've fallen out or what is happening and I don't know if I should ring the teacher to see if something is going on?