Yes, BP and BPD can be comorbid. I am glad you are scheduled for a phone app. with a pdoc. I think the key is that you get into euphoric and dissociative/paranoid states in the absence of meds. Make sure Pdoc knows you go through intensely euphoric periods.

From your post, it seems like you are taking the right actions...if it were me, I would be doing the same thing. Prozac sent me manic and Paxil started to also (caught it in time to not go through the roof though). Then I started Lithium (and have been doing everything else I can like good sleep, nutrition, exercise) and the waters have evened out quite a bit! I wish I had addressed this in my 20's the way you are...I would have saved myself from a ton of self-destrucive behavior and years spent in depression feeling like crap.

So, seems to me like you are heading down the right path. One last thing...I would print out what you just posted and save for when you talk with pdoc so that you don't forget critical info.

Best wishes.