[laserbeam]

At some points in life I spent several weeks with my therapist and one session with a psychiatrist exploring whether I have ADHD. Turns out I don’t. It was an important journey in my past, not because it determined that brain is “normal”, but because I learned a lot about myself.

Every single self diagnostic tool I have looked at in that period would have screwed me over. I would have misdiagnosed myself.

I second everything in this comment. If you think you have ADHD, explore the topic with professionals. Your own biases can trap you with internet apps.