Bipolar Disorder or Borderline Personality Disorder?

Bipolar disorder and borderline personality disorder (BPD) share some features, so they are often confused with each other, even by professionals! Have you been misdiagnosed with bipolar disorder, only to learn later that you have BPD? Have you been diagnosed with both? Have you been diagnosed with BPD only to learn later that it is really bipolar? Join the discussion on BPD versus bipolar disorder in the BPD forum.