[Solvitieg]

That's the difference between two individuals, not necessarily the difference between having ADHD and not having ADHD.

Being tired after drinking caffeine is common.

[borski]

I am not suggesting anyone use their response to stimulants as a diagnosis of ADHD. However, speak to anyone who has it and they will relay that stimulants make them calm, not hyper.

People without ADHD get hyper, not calm. Some others also get calm.

But people with ADHD who take stimulants do not get hyper.