Sounds very similar to my son
He may have it, it’s possible. It’s best to see a paediatrician, bring videos etc of your concerns - it might just be global developmental delay which he could grow out of with extra assistance. In any case, if he does have autism, picking it up this early will benefit him greatly. Try and stay calm and just do what you can to get the evidence together that you need to show the paediatrician. The best thing to do is early intervention if he is showing any signs of delay.
I wouldn’t say he is delayed on his 10 month questionnaire he scored great in problem solving , personal social and fine motor , he scored ok on gross motor and low on communication , he is pointing but not clapping or waving, it’s this constant whining /humming it’s draining me , he is aware of his bothers and laughs with them but something seems off , other ppl always say how whinny he is x
To add he likes to put his comfort blanket on his face when tired x
If he’s giving eye contact, responds to his name and isn’t delayed I’d say he’s fine. My 2.5 year old is autistic and he didn’t do any of those things those were the first things we noticed. No eye contact, didn’t respond to name and behind on his development
What are the signs you believe he has autism? Are you uk based?