Bipolar & BPD??

I received a newletter discussing Borderline Personality Disorder & was in disbelief of how much I fit the simptoms. I dont doubt Im Bipolar (more than likely "rapid" cycling) but now wonder if I may also have BPD. I have always had difficulty maintaining an intimant relationship. I become SO codependant, I fear they will give up on me & leave like all other b/f in the past, I become more depressed & self doubting b/c I tend to niglect my needs, I also fear them going out w/friends & having more fun w/o me there. Even as I write the last sentence it sounds soooo irrational even in my own head which makes me feel even crazier and lessens my self esteem even more. It made me feel better when I 1st read the article b/c just maybe Im not a bad person & others are going through this as well, but now Im just scared I'll never be able to love & be loved. Ive got the whole "daddy abandonment" issues which sounds like such a cop out, I'd like to think Im stronger than that, that my fucked up childhood didnt leave me damaged....I see a therapist on Monday but any related stories or advise would be greatly appreciated!! Thanks so much if you took the time to read this.