This is what I tell people when I've said I have autism.
Not so long ago a family friend who works in the village post office came over, really nice lady but she didn't know I was autistic so she was told and her initial reaction shocked me. She said, oh I am sorry. It had never occurred to me that some people, perhaps the majority, think it's a bad diagnosis. I agree it has its ups and downs but it also makes me who I am, gives me those things that make me special and unique.
That's a good thing to me. Without autism I wouldn't be the person I am today. I wouldn't be here and have met you lovely people.
I said thanks but there's no need to be sorry.
I'm autistic and proud!