@FrightenedRat@ratcatcher@Gtmlosangeles@allautistics@actuallyautistic This is really tough.
The hashtag has to be short, hard to misunderstand and also should sound nice enough, so that people are willing to use it and it shouldn't make you seem weird for using it to others not familiar with the hashtag...
The best I could come um with is the seemingly most obvious #ImAutistic, but that could sound too much like a hashtag to come out as autistic and not to be used regularly.