A borderline personality disorder is a "full-blown" one, the term "borderline" doesn't mean not-quite-full-blown, just one the "border" :-)

Back in the early 70's I was diagnosed with "borderline" and back then it meant between neurosis and psychosis :-) I lived in an "imaginary" world I'd created so wandered between reality and unreality (basically).

If I think about it, I think of "personality" as "me"? That, to me, is where the problems enter, I belive personality disorder/Borderline is about "who is "Me"? Notice the capitalization! I like "borderline personality disorder" as a diagnosis as it has a certain "questionable"/volatile aspect so it is more "open" and subject to change in ways one might like? It makes me think of "late bloomer" :-)