Well, borderline personality disorder affects about six million people in the U.S. (2%) from one source I found. So, it's not completely rare. However, to get such a diagnosis, you would need to be in treatment for awhile. I hope you are considering therapy or already in it, anyway. Many of us at Psych Central either are in therapy or have been in therapy.

As far as what it entails, you might want to see what you can find out on the borderline sub-forum here (under personality disorders.) It does involve quick emotional changes, a fear of rejection and abandonment, etc.

I assume you have other significant scores, too.

127 is a bit high as a score, but please don't take it to mean you are "insane." I wish the name of the test could be changed!