What do you mean by borderline or dissociative features?
Sorry I feel a bit dumb?
Features of a dissociative disorder or Borderline Personality Disorder. Obviously, dissociative symptoms are part of the diagnostic criteria for PTSD, but sometimes they get a little more extreme than just "numbing out" or having vivid flashbacks. Like when people black out entire years of their lives, or hear voices in their head.
Borderline Personality Disorder is separate from PTSD, although they often occur together. It's characterized by rapid fluctuations in mood, emotional reactivity, impulsive or self-sabotaging behavior, and unstable relationships.