Once, many moons ago, I read a term that someone used to describe themselves for having ADHD and ASD, but wasn't the term "neurodivergent" since they didn't like its companion term "neurotypical". I wish that I could remember what term they used, because saying AuDHD is still terribly wordy especially spoken out loud, and I don't have the H part.
I have taken to saying that I have triple A, Autism, ADHD, and Anxiety, but that's even more wordy since it requires explanation.
The player character may try to quickly skip through dialog they've already heard, so if they interrupt you, just pick up on the next sentence you were going to say.
In some engines, the player character may also be able to walk away mid-dialog. If this happens, feel free to continue talking while they're still within earshot, or berate them.