Hiya, so my 18 month old son is showing alot of traits of asd. Spinning things, humming (morning till night) arm flapping, non-verbal, tip-toe walking, doesn't respond to his name, doesn't interact with other children, very limited eye contact. I have spoke with his health visitor but she is saying this could be normal with his age?! Any advice on where I could take this next or get further help? Thank you.