2. Some time ago, my sister and brother-in-law said that my child might be a little ADHD because my brother-in-law is a doctor (a very powerful one), but according to my observation and experience, I don't think my child is ADHD. In fact, my children like playing games and are a little rebellious. Everything is fine now. You can decide whether to take your child to see a doctor according to your own situation. I suggest you observe your children with the wise men of the local women's Federation or charity Federation before making a decision.
According to what you said, your child is not necessarily autistic, even if it is, it should be mild and it should not be difficult to treat. The most important thing is to respect the child, guide the child, give him an environment and conditions suitable for his growth, communicate more and communicate more, and must respect the child. That's all that matters. Actively create a safe "small country" social circle for children, guide children to interact with other children and people, and believe everything.
My Baidu knows that there is a Buddhist answer to treating autism. You can look at it, or you can search online yourself: Sodaki Kampo's Enlightenment on Autism. I wish you an open mind and wish you and your family, especially your children, health and happiness.