Girls, hello! My child is 1.1 years old, he doesn't respond to his nam…

Girls, hello! My child is 1.1 years old, he doesn't respond to his name when called. He used to say more words, about 7-8, now only 2-3. I googled and everyone writes about autism. There are no other signs of autism except that he still can't walk on his own, only with support or when he holds onto our fingers. Did you have this too? What did you do?