Star Trek: Discovery has Cadet Sylvia Tilly, a character who’s not identified as autistic but is very coded as such (e.g. in her first scene, she seems to have trouble with picking up on social cues and talks a lot, and she had to get a different fabric for her bedsheets because of “special needs”). her portrayal is very respectful and positive, and as all the characters get to know each other they make an active effort to be understanding and accommodating towards her and treat her like the capable officer she is
it is psychosomatic, but can still be debilitating. i knew a Navy veteran who could not drink straight water at all because while in the Navy, he had to drink several gallons of the stuff every day. as soon as he was discharged (honorably), he found he couldn’t have water without anything added to it simply because he had so much of it in the service. of course, he still has to drink water, so he carries around a bottle of flavoring