lol no shit thats what happens when you do too much of any drug.
especially drugs that you aren't prescribed.
i am prescribed adderall, and i take my normal dosage, i work better and more efficiently because of it. Not because of being sped up on amphetamines, but because I'm ADD. I can take 100 mg's of adderall and still be calm and collected, it simply does not do the same thing to me as it does to people that aren't ADD.
people who steal prescription drugs that they aren't prescribed is a low, low, low thing to do.
If we run out of our little pills, we feel like shit for as long as we don't have it. Kinda like withdraw.