My sleep gets pretty messed up in my manic cycles as well. Actually, my sleep is ALWAYS sort of messed up: either I'm getting too much or too little. But I think everyone experiences Bipolar a little bit differently and while it sounds like you have most of the textbook symptoms, getting a second opinion is definitely worth your time if everything you're experiencing is negatively affecting your life. I was tagged with Borderline when I received my Bipolar diagnosis; it's pretty common for those two to go hand-in-hand considering they share a lot of symptoms. Good luck! <3