How does a non-ADHD brain work?

I’ve been struggling a lot with this question lately after questioning my own ADHD diagnosis. I talked to my best friend about it, and she said, “well, if you didn’t have ADHD, then how would you think about XYZ?”

That’s when it hit me, I literally cannot imagine how a non-ADHD brain works. I tried to think things like “if I could plan, how would I feel while making a to do list and accomplishing it?” And my brain literally goes blank. Nothing. Zip. The only thing I can think of is how I’d think about it.

First, is this relatable to anyone else? Second, how the heck DOES a non-ADHD brain work?? What does it feel like to not have it?