I was diagnosed with Bipolar II, along with GAD.
All this diagnosis does for me is describe my erratic moods. I doesn't explain why I have no desire to be in any kind of long-term relationship, why people can NEVER freaking understand a damn thing I'm talking about, and why I'm so paranoid of others.
I don't think I've been misdiagnosed, but I don't think they nailed every problem.