Hi my son is 12 months of age and will be 13 months in 2 weeks. He is not babbling like other babies do. He just hums and does an a sound every now and again at different pitches. He also is not pointing nor looking when I point to anything. He has not said mama or dada or anything along those lines not even gogo gaga. He also has an obsession with wheels and spinning stuff as well as light. He does bash the back of his head occasionally against his high chair although its seems to have lessened. He does however give eye contact for a few seconds and he does respond to his name every now and again. He also smiles when he sees me smile or sees someone he likes coming towards him. He is very clingy towards me and he also is not sleeping through the night. Im worried that he might have autism but I am unsure as he has some redflags but not all.