As one who has a serious mood disorder (myself...lol), I can tell you first-hand that hypo-mania looks A LOT like ADHD. You can not sit still, you talk fast, you don't focus, etc. but I tried Ritalin. It not only made me more hyper (after all, it IS speed), but after it wore off I plunged into one of my depressions that lasted for over a year. Hypomania includes racing thoughts, anxiety, and lots of things that looks like ADHD. But it doesn't respond well to ADHD medications. Maybe that's what you're seeing. I personally would never take ADHD medications. I"m hyper enough and they make me worse.
Stimulants make everyone able to focus better. College kids used to take them before exams so they could study all night (they probably still do). But they can cause all sorts of mood problems and are also abused a lot by teenagers with or without ADHD. in my opinion it's worth it to try something else. Or nothing at all for that symptom. Good luck!
