I'm not diagnosed autistic or any other form of neurodivergent. To the day if someone asks "how are you?" I might give a real answer. "Not good, my cat is sick and I'm worried he might be dying" was one I gave last year, to a food service worker. He gave me a discount that day, acknowledged that that doesn't make it better but he did something to show he saw me and we have been a lot more friendly since then.
I don't dump on him every time I see him, because I genuinely have good days, but he lights up when he sees me, and that makes me happy too.