my 5 year old girl is autistic. my 2nd baby is a baby boy who is 4.5 month old. my boy look at people faces from distance and make eye contact but when I goes close to him he doesn't make eye contact also same doing when I hold him up. he started smiling at 3 month but from 2 days he didn't smiling. He making cooing sound but doesn't blow raspberries. he started side rolling. I am very scared for autism. plz reply and suggest