If you think your child is displaying signs of autism, there is a process you can follow to get a diagnosis. This will mean you can access more specialised support for you and your child. Some parents decide against getting a diagnosis for their child, and you can still help your child without one.
To start with, there are a few professionals you can talk to about your child:
Your conversation with a professional may lead to a referral and an autism assessment.
Read about supporting an autistic child without a diagnosis.
The National Autistic Society has branches around the UK if you want to talk to someone in person.