This sounds bizarre but I think I was diagnosed when I was a child (I remember lots of tests and conversations with professionals before being removed from mainstream education) but put it down to being a bit messed up about my toxic parents overwrought divorce. I had parents that would hide things so I wasn't told the truth about a lot of things.
I've always known my brain works differently to others and on occasions its made me a target.
It was during the pandemic that it all came to a head. I felt an immense relief not working in the office, where it felt like a sensory overload of noises, smells and touch. I started reading online and finally took an online RAAD-R test but got some friends to also take it.
One scored 17, the other 65 but he said he had issues with the questions whereas mine was 189 and I was making an effort to temper my answers!
So I'm currently self diagnosed but its pretty obvious and when I get my full medical records, I'll find out what happened when I was a kid.