Honestly, the p-docs and T would probably say you were Bipolar 2 if you have no history of trauma and have similar systems.

It's like this:
Trauma = Borderline
No Trauma = Bipolar 2

Of course there is some overlap as well....but the transferance/countertransferance that occurs in therapy with abuse victims (most borderlines) is different than someone that has not been abused.
Good T's can see Borderlines coming..LOL (and then they run!)