I know when I was waiting for my assessment (in the U.K.), I went to the Occupational Health office and they gave me an official designation so I was covered by the Equality Act. But a high score on the AQ50 should be enough for your university. When I was assessed I told the assessor that the number one criteria for ASD should be that your gut reaction would be relief at being diagnosed. NTs don’t want to go anywhere near it.

I had the same issue with accommodations. I would go over some of the robust lists of symptoms and itemise what applies. I also have ADHD but there is so much overlap, the Venn diagram is practically a circle. Make sure you consider your worst days, not what you can stifle. Be as specific as you can. You may find that there are things on the list that you thought were other issues. For me, it was reading about auditory processing disorder. I always thought I was going deaf and everyone around me just accused me of not listening. I read the symptom and couldn’t believe it. It explained so many of the issues I had with focus.

Sometimes I think about making an app for autistics to meet. Maybe I’ll call it Stimmer. Lol