hi new here

Hi everyone im on here for hopefully chats concerning what is autism as I work in a school with autistic children and love my job and have a grandson who from day one he was different from the others as we didn't have and eye contact and he almost seemed deaf to our voices , the health visitor sent him for a hearing test and they just said we cant give you anything as he doesn't respond to anything :( he wanders about in his little world and doesn't like interaction with other children ,he is nearly 2 but due to the recent issues with covid we seem to be in the dark as to who to speak to next , he stims a lot when he sees his favourite character on screen, he is very tactile with food and has been since birth we thought he had problems with his throat as he would scream during a feed ..I was wondering if anyone else out there can identify with any of these thing xx