I could be ADHD, I hear a lot of stories about people diagnosed as adults. Surely everyone has trouble getting motivated for boring tasks. Surely everyone would benefit from stimulants though? I'm not sure how to tell the difference.
Stimulants also effect people with ADHD differently than those without. I won't pretend nto be an expert on the subject, but stimulants tend to make people with ADHD calmer, able to control their thoughts better, and sometimes even sleepier. People without ADHD tend to feel agitated and jittery and hyper.