my grand child has been displaying signs of autism since he was 3 but seemed to pass all tests he is now 7 and to me and other members of the family it is more obvious so in the last month. he has suddenly become violent kicks hits screams and cries very much out of character his dad and mum are separated he is 50 /50 custody always preferred dad but happy also to be with mum ,mum has a boyfriend now seems nice do I dare think the worst or is it the autism showing itself more he is now 7 going to doctor tomorrow