BPD is different to BP but BPD can mimic BP, especially if you a self diagnosing, some paitents can display symptoms of mental illness even if they dont have it, after believing that they do, especially those with BPD. So be aware of this.

How long do your mood swings last? BPD moodswings tend to change daily to every few days, where as BP changes over weeks or months. Many many people are misdiagnosed and if they have ruled out BP NOS it is unlikely you have it. Rule out means not a possibility.