An untrained dose of amphetamine will hit you hard even if you have ADHD, especially if it’s higher than the entry level dose, so I would say it gives you zero information about whether you have the condition.
Funny story though. I have a similar story after my friend walked up to me in a club with a line of coke on his hand. Then I proceeded to charm the girl that became my next girlfriend.
I’m not so sure about that. My very first dose of Adderall was anticlimactic. I was bracing for the rush from an energy drink or something, and instead felt… nothing. I was just able to focus on work better that day.
Also, cocaine and amphetamines are very different drugs. They’re both stimulants, but that’s about all they have in common.
You see this in ADHD groups where someone will start stimulant medication for the first time and say "This is incredible. I can't believe this is what everyone else feels like all the time"
And the crowd emerges to reinforce that, no, you're euphoric, this isn't normal, after about a week it'll go away and you'll just feel normal but more productive and have better executive function.
And that's on a starter dose, the parent commenter probably took 2-3x that
Funny story though. I have a similar story after my friend walked up to me in a club with a line of coke on his hand. Then I proceeded to charm the girl that became my next girlfriend.