Hi everyone. My first post on here

My son is 14 months old and I believe he is showing some signs of autism. I really want an outside point of view.
Signs are
He flaps his arms
He has no interest in other children
He doesn't point or wave but he does clap.
Doesn't look if I point at something..will just look at my hand.
He has an obsession with wheels or anything that goes around.
He hasn't said any words beside mama which he does not say to me..he will say it randomly whilst doing something.
Obsessed with a certain baby tv channel..he won't watch anything else but that channel.
He's very fussy with food and only eats what he recognises.
He does look at me in the eyes but no where near as much as a child his age should.
He doesn't respond to his name.
I took him to the doctors to get his hearing checked as my brother mentioned that he could be deaf due to him ignoring anyone that talks to him
He was sitting up early though..he crawled at 9 months and walking at 12 months. His physical development is fine.
And he does laugh and smile.
I just know that something isn't quite right.
He's in his own world most of the time.
He will literally take no notice of children..completely oblivious to them being there.
What does everyone think?
Are they signs of autism?
I really want to get him diagnosed early if it's autism.
Thanks everyone x