It would have been nice to have had a diagnosis younger, but when I was a kid, autism was a diagnosis reserved for severely disabled people, and Asperger's Syndrome did not exist as a definition yet. (When I was diagnosed decades after this story, I was diagnosed with Asperger's, which was eventually folded into the autism spectrum.) I don't think anybody had even thought of ADD yet in terms of neurodivergence.
I don't know how I would have felt if those child psychologists I was taken to had put a label on me. All they could really offer is that my intelligence tested high normal and that I didn't have any obvious learning disorders. That was great and all, but I still wondered why I was so weird.