For what it's worth, I have ADHD, and when I take adderal it has a profound mellowing, and calming effect.

I don't take it in the morning for that reason. Because it has zero stimulation / awakeness effect on me, I wait to use it in the afternoon, when sleep inertia has fully dissipated.

And therein lies the problem with making generalizations from single data points. Supposedly I have ADHD as well (I'm diagnosed such at least), and I generally become more mellow after taking adderall. I think the moral of this further anecdote is that generalizations should not be made on either of our experiences. Add into that the confounding factors of human bodies not being identical and having differing reactions to the same stimuli, and it becomes an even more dangerous game.

Even more anecdotally, back when I was young and took amphetamines, it would mellow me out despite not having ADHD. Taking opiates would stimulate me. Bodies and minds are quirky.

I agree, I wasn't trying to imply that relaxation from stimulants would be -the- diagnosis for adhd, but if people with adhd tend to relax from the meds and people without adhd tend to not relax, then the claim that it's a myth that the meds affect adhd sufferers differently would be a lie