In controlled studies, non-specialised treatment that did not address dissociative self-states did not substantially improve did symptoms, though there may be improvement in patients' other conditions. Dissociative identity disorder (did) is a mental health condition where you have two or more separate personalities that control your behavior at different times. Did often co-occurs with other emotional conditions, including posttraumatic stress disorder (ptsd), borderline personality disorder (bpd), and a number of other personality disorders, as well as …