No need to worry. What is likely to happen is if your symptoms appear to be more than borderline, but they don't exactly fit diagnositc criteria for BP 1 or 2, you'll get a diagnosis of cyclothemia or Bipolar NOS (not otherwise specified).
Whe I first got that, I was insulted and offended. I felt like I wasn't being taken seriously and I stopped seeking treatment for several years.
It's not like that. They believe you have a mood disorder, but they haven't seen the rest yet.
If I remember right, there is a member here who was recently diagnosed Bipolar NOS, and then went into a full manic (possibly) mixed episode. So now that person would meet diagnostic criteria and will get a more accurate diagnosis at her next appointment.
My NOS diagnosis became "possible cyclothemia" after my therapist and psychiatrist starting talking. After I was hospitalized, I was diagnosed Bipolar II. My lates psychiatrist did a more thorough intake and changed diagnosis to Bipolar I. At my last appointment he was like "IF bipolar is the correct diagnosis and it's not borderline personality disorder" ARG! I don't fit the diagnostic criteria for that anymore - that was 6 years ago from a psychiatrist who spend all of 10 minutes with me. He also mentioned some "suicidology personality disorder" which I can't find a reference to ANYWHERE, but said I don't fit diagnostic criteria - probably because I've never had a really serious determined suicide attempt. I've come d*mn close twice in the last week. (But all is good now.)
Anyway, relax. Report your symptoms as accurately as possible. Don't try to make your symptoms fit a particular mold or disorder. That basically discredits everything you say. There is a whole lot of variety in mood disorders, and your diagnosis DOESN'T really matter so much - the medication options are the same for all mood disorders.
I hope you get some answers - and more importantly - treatment that works!
Borderline Personality Disorder
Post Traumatic Stress Disorder
Depakote, Abilify - FAIL; Seroquel - Epic Fail
Lamictal 150mg (up to 200mg soon), Klonopin 0.5mg as needed, starting Seroquel XR 50mg soon