Wow! Thank you so much for this ressource. I recently experienced a shutdown a couple of days ago. The whole idea of me as an autist person is quiete new for me and came along by my psychotherapist, who mentioned this to be possible in a sentence beside. Since then I started to watch me and my behaviour from an other perspective and found a ton of symptoms of being autism too. In the past I often had this feeling of a shutdown and or meltdown and could never tell what it actually was but really really bad mood and anger about each and everything. Only my dog was "okay" to be there in those times, as long as she only did keep an eye on our surrounding for our "safety" from the perspective of a dog.
Anyway. Thanks a lot for posting this video, it helped me to identify possible triggers in my daily routines