OCD or BPD?

I have severe OCD, and am a hypochondriac. I have very black-and-white thinking patterns about pretty much everything, including my perceptions of other people (friends and my boyfriend especially) -- but I also have ROCD. I feel like I can't get a clear head on what I want to do with my life (career-wise and otherwise), and it affects my ability to have a sense of self. On the other hand, I'm also 22 and I'm aware that this is relatively normal for being in your mid-20s. I have HOCD, and it's just another way in which I feel I don't have a sense of self. I've been having mood swings/been quick to overreact recently, but my psychiatrist said that it was likely due to the anxiety and panic attacks.

Basically -- does anyone else with OCD struggle with black-and-white thinking and never being able to have a clear sense of self? Does it sound like BPD? (When I start getting anxious about having BPD, I'll spend hours researching it/taking online quizzes, which makes it feel kinda like OCD?) I just feel totally crazy and want to know if these are feelings a lot of people with OCD have.