Hi I have a strange feel that my 4 month old has symptoms of autism. I observe him doing below. Most of the time doing tongue out( almost his tongue is out all time) Starring at one design or pattern, light, ceiling fan. While doing this he never responds. He just bangs his left hand continuously and kicks left legs. He recently developed a habit of refusing to sleep. To put him sleep, it's really tough. Before I feed him to make him sleep. Now he refuse to feed also when he wants to sleep and cries a lot and screams. He has flat back head. He was born premature. And I worry a lot when he cries or screams.