One of my best friends had ADHD. He wasn't "Hyper"
What the symptoms showed up as extreme uncontrollable insomnia. Like 4 days at a time for no reason. He twitched a lot, vibrated, couldn't stop moving his hands ETC but that wasn't all it took to get a diagnosis, it was a serious issue taken up by a trained doctor. I myself have always got to be using my hands as I have a small form of Autism (Where else did I get the name, eh?) but they didn't diagnose that as ADD: they take in everything else and give an accuarate diagnosis based on what their educated minds believe and find most reasonable.
Is ADHD over diagnosed? Absolutely. Does it exist? Without a doubt. Is it an excuse? No. Do you think the kids that get prescriptions want to be taking what is essentially small doses of cocaine (Ritalin)?
They take it because they have to, it was prescribed to them by a doctor, and we SHOULD trust our doctors on this. If we left our health to the internet and naysayers, well...
If a doctor over diagnoses or misdiagnoses there is cause for a malpractice suit so it is in his best interest to diagnose accuarately and in this Lawsuit-Happy day and age sometimes the Better-Safe-Than-Sorry method does occur, but even then prescriptions and treatment would still be administered by a professional to the best of his abilities.
Don't deny treatment by professionals just because you don't believe it personally.