From Coping with Trauma-Related Dissociation:
Complex PTSD consists of of six symptom clusters, which also have been described in terms of dissociation of personality. Of course, people who receive this diagnosis often also suffer from other problems as well, and as noted earlier, diagnostic categories may overlap significantly. The symptom clusters are as follows:
Alterations in Regulation of Affect ( Emotion ) and Impulses
Changes in Relationship with others
Changes in Meaning
Changes in the perception of Self
Changes in Attention and Consciousness
Alterations in regulation of affect(emotion) an 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 your 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.
Changes in Attention and Consciousness:
People with Complex PTSD suffer from more severe and frequent dissociation symptoms, as well as memory and attention problems, than those with simple PTSD. In addition to amnesty due to the activity of various parts of the self, people may experience difficulties with concentration, attention, other memory problems and general spaciness. These symptoms often accompany dissociation of the personality, but they are also common in people who do not have dissociative disorders. For example everyone can be spacey, absorbed in an activity, or miss an exit on the highway. When various parts of the personality are are active, by definition, a person experiences some kind of abrupt change in attention and consciousness.
Changes in the Perception of Self:
People who have been traumatized in childhood are often troubled by guilt, shame, and negative feelings about themselves, such as the belief they are unlikable, unlovable, stupid, inept, dirty, worthless, lazy, and so forth. In Complex Dissociative disorders there are typically particular parts that contain these negative feelings about the self while other parts may evaluate themselves quite differently. Alterations among parts thus may result in rather rapid and distinct changes in self perception.
Changes in Relationship with others:
It is especially hard to trust other people if you have been repeatedly abused, abandoned or betrayed as a child. Mistrust makes it very difficult to make friends, and to be able to distinguish between good and bad intentions in other people. Some parts do not seem to trust anyone, while other parts may be so vulnerable and needy that they do not pay attention to clues that perhaps a person is not trustworthy. Some parts like to be close to others or feel a desperate need to be close and taken care of, while other parts fear being close or actively dislike people. Some parts are afraid of being in relationships while others are afraid of being rejected or criticized. This naturally sets up major internal as well as relational conflicts.
People with Complex PTSD often have medical unexplained physical symptoms such as abdominal pains, headaches, joint and muscle pain, stomach problems, and elimination problems. These people are sometimes most unfortunately mislabeled as hypochondriacs or as exaggerating their physical problems. But these problems are real, even though they may not be related to a specific physical diagnosis. Some dissociative parts are stuck in the past experiences that involved pain may intrude such that a person experiences unexplained pain or other physical symptoms. And more generally, chronic stress affects the body in all kinds of ways, just as it does the mind. In fact, the mind and body cannot be separated. Unfortunately, the connection between current physical symptoms and past traumatizing events is not always so clear to either the individual or the physician, at least for a while. At the same time we know that people who have suffered from serious medical,problems. It is therefore very important that you have physical problems checked out, to make sure you do not have a problem form which you need medical help.”
Changes in Meaning:
Finally, chronically traumatized people lose faith that good things can happen and people can be kind and trustworthy. They feel hopeless, often believing that the future will be as bad as the past, or that they will not live long enough to experience a good future. People who have a dissociative disorder may have different meanings in various dissociative parts. Some parts may be relatively balanced in their worldview, others may be despairing, believing the world to be a completely negative, dangerous place, while other parts might maintain an unrealistic optimistic outlook on life