I can turn off colors and sound when I get stressed.

I've recently been doing a ton of research, and I think I may be on the Autism spectrum. Not claiming to be autistic, I don't have a diagnosis, but there is a huge possibility. I also recently realized that it isn't normal to be able to turn off sound and color when I get too stressed. My ears hum softly, and I can't hear anything outside my head. Everything in my field of vision dulls out to greys and light browns and stays like that until I calm down. However, I also have a history of trauma, derealization, dissociation, all that, so could it have to do with that? I've been able to turn off these senses since I was a little kid, just now wondering about it. Let me know if you know anything!!!