Well, hypomania and ADHD have several things in common, but Bipolar Disorder and ADHD are completely different. The key difference is the presence of depression. ADHD doesn't swing back and forth. It doesn't turn off and on, and switch places with depression. True mania requires a break with reality, so no, it's not the same thing either.
If you are experiencing restlessness, lack of concentration and focus and you're bipolar, I'm guessing you're either experiencing a hypomanic phase or you're ADHD is really kicking in. In either case, I'd call the doc, because probably you need your meds adjusted.
I hope you feel better soon!
Co-Moderator, Bipolar Forum