> At the end, she told me she would review my exam and have the results ready in a few days. Yeah man I can go ahead and let you know early if you want.
It turns out, there are other conditions out there that can appear to be be ADHD. If a trained therapist can confuse them, outside observers certainly can too, so it is possible that "very ADHD-acting" person you know might not have it.
(Or, especially for females, the reverse can be true, as not everyone with ADHD manifests with the same trademark hyperactivity.)