Alterations in regulation of affect (emotion) and impulse:Almost all people who are seriously traumatized have problems in tolerating and regulating their emotions and surges or impulses. However, those with complex PTSD and dissociative disorders tend to have more difficulties than those with PTSD because disruptions in early development have inhibited their ability to regulate themselves. The fact that you have a dissociative organization of your personality makes you highly vulnerable to rapid and unexpected changes in emotions and sudden impulses. Various parts of the personality intrude on each other either through passive influence or switching when you're under stress, resulting in dysregulation. Merely having an emotion, such as anger, may evoke other parts of you to feel fear or shame, and to engage in impulsive behaviors to stop avoid the feelings.

Coping with Trauma-Related Dissociation: Skills Training for Patients and Therapists