For anyone having issues with the #ActuallyAutistic hashtag, there is also #AllAutistics and @allautistics (the latter being a recently created group that you can follow and post to).
They are intended for anyone who is (or thinks they might be) autistic (formally or self-diagnosed).
Once the local tags were in use then starting to type #AutisticMe should bring up the localised versions as well, so doing it that way round would help with visibility.