Exactly when my son first entered school they diagnosed him (without a doctor of course) as ADHD. They suggested we see their doctor to confirm this. I suggested they stick it up their Ass.
We moved schools (a smaller one / private with 10 students per class).
Fast forward about 1 yr I asked his new teacher about my son being ADHD and she looked at me like I was insane.
At present my son is top of his class in nearly all subjects.
It's a sick sick system.