I read an article I found useful about those of us on the spectrum are likely at an elevated risk of developing PTSD from all sorts of things that a NT mind would not
https://www.autism.org.uk/advice-and-guidance/professional-practice/ptsd-autism
I find that it's developed from public transport, stories of other people, loss of loved ones, failed jobs, and big life changes.
I guess I underestimated how big an effect the world is having on us
Hope you find it helpful