Hello, I have BPD and bipolar 2.
You say you don't agree with the diagnosis and can't think of any manic symptoms. If that's true then I wonder why you were diagnosed with bipolar 1? That sounds very strange. Is it possible that you have both, but don't recognize the manic symptoms? If you don't have manic symptoms then you're not bipolar. I hope you figure this out, and if you have BPD I hope you're prepared for some hard work!