The leading theory from what I've researched is that he was schizophrenic. But yeah he seems ASD af too. I've read several different "The Complete Works of Lewis Carroll" books over the years and it definitely seems to fit.
would someone who hadn't experienced face-blindness; "That's just what I complain of," said Humpty Dumpty. "Your face is the same as everybody has—the two eyes,—" (marking their places in the air with his thumb) "nose in the middle, mouth under. It's always the same. Now if you had the two eyes on the same side of the nose, for instance—or the mouth at the top—that would be some help."; think to write this?
Caption this Meme