I wonder what happens on meds with kids who do not really have ADHD? Is it just a mild difference, and what exact changes in behavior are there? In my ADHD kid, you can tell immediately whether she's had her meds or not. She calms way down.

I accidentally took a Concerta or Adderall one day instead of my own med (wasn't paying attention to what I was doing) and didn't notice any difference in how I felt.