"is it Bipolar or BPD?"
Bipolar Disorder (also known as Bipolar and confusingly sometimes abbreviated as BPD) has two different subtypes that I know of - BPD 1 and BPD 2, with each having different symptoms.
Confusingingly, BPD is also an acronym for Borderline Personality Disorder, which is a different diagnosis than bipolar.
Resident experts here, please correct me if I am giving out misinformation. I am going off what I learned awhile ago, and this may have changed.
Personally, I really, really do not like labels - ultimately, to me, it is the symptoms that matter.
Psychology is a psuedo science at best. IMO, rather than trying to "name" or "label," a disorder it is the symptoms that matter (I have heard horror stories of people being labelled with different diagnoses each time they see a different psychiatrist, which leads to a plethora of different treatments).
Finding the best teatment for the symptoms you have seems to me to be so much more important than putting a label on what is impacting your life. (Just my opinion) : )
<3
On edit: "I just did a quick search and found this - Borderline personality disorder is also known as emotionally unstable personality disorder (EUPD). If your doctor says you have EUPD, they may say you have 'borderline' or 'impulsive' type EUPD."). Also, my apologies, I just re-read your post and may have misunderstood the question. But, I would say the same thing - no matter the label, it is treatment for relief of symptoms that matter. Personally, I would focus on this instead of a label.