Hello, I am a newly diagnosed adult mother in a blended family with two older kids and a 2 year old son who has yet to be diagnosed but he is definitely high functioning autism, he a time and talks without moving his mouth and makes sound with his throat, he is also obsessed with letters and numbers. He can find even the nearly invisible numbers on the bottoms of toys etc. On our street he stops to look at the mailbox and license plates. Does anyone else have things like this going on?