“The location of the dividing line between the concepts of shame, guilt, and embarrassment is not fully standardized.^[4]

According to cultural anthropologist Ruth Benedict, shame is a violation of cultural or social values while guilt feelings arise from violations of one’s internal values. Thus, it is possible to feel ashamed of thought or behavior that no one knows about and to feel guilty about actions that gain the approval of others.

Psychoanalyst Helen B. Lewis argued that “The experience of shame is directly about the self, which is the focus of evaluation. In guilt, the self is not the central object of negative evaluation, but rather the thing done is the focus.”^[5] Similarly, Fossum and Mason say in their book Facing Shame that “While guilt is a painful feeling of regret and responsibility for one’s actions, shame is a painful feeling about oneself as a person.”^[6] Following this line of reasoning, Psychiatrist Judith Lewis Herman concludes that “Shame is an acutely self-conscious state in which the self is ‘split,’ imagining the self in the eyes of the other; by contrast, in guilt the self is unified.”^[7]

Clinical psychologist Gershen Kaufman’s view of shame is derived from that of Affect Theory, namely that shame is one of a set of instinctual, short-duration physiological reactions to stimulation.^[8][9] In this view, guilt is considered to be a learned behavior consisting essentially of self-directed blame or contempt, with shame occurring consequent to such behaviors making up a part of the overall experience of guilt. Here, self-blame and self-contempt mean the application, towards (a part of) one’s self, of exactly the same dynamic that blaming of, and contempt for, others represents when it is applied interpersonally. Kaufman saw that mechanisms such as blame or contempt may be used as a defending strategy against the experience of shame and that someone who has a pattern of applying them to himself may well attempt to defend against a shame experience by applying self-blame or self-contempt. This, however, can lead to an internalized, self-reinforcing sequence of shame events for which Kaufman coined the term “shame spiral.^[8]

One view of difference between shame and embarrassment is that shame does not necessarily involve public humiliation while embarrassment does, that is, one can feel shame for an act known only to oneself but in order to be embarrassed one’s actions must be revealed to others. In the field of ethics (moral psychology, in particular), however, there is debate as to whether or not shame is a heteronomous emotion, i.e. whether or not shame does involve recognition on the part of the ashamed that they have been judged negatively by others. Immanuel Kant and his followers held that shame is heteronomous; Bernard Williams and others have argued that shame can be autonomous.^[10][11] Shame may carry the connotation of a response to something that is morally wrong whereas embarrassment is the response to something that is morally neutral but socially unacceptable. Another view of shame and embarrassment, though, is that the two emotions lie on a continuum and only differ in intensity.”

More on http://en.wikipedia.org/wiki/Shame

Compulsive behavior is behavior which a person does compulsively—in other words, not because they want to behave that way, but because they feel they have to do so.

Mental health professionals have identified signs of compulsive behavior in various disorders such as:

1. Obsessive–compulsive disorder – obsessive, distressing, intrusive thoughts and related compulsions which attempt to neutralize the obsessions.
2. Drug addiction – a condition where a person takes a drug compulsively, despite potential harm to themselves, or their desire to stop. More at http://en.wikipedia.org/wiki/Compulsive_behavior

http://ptsd.about.com/od/glossary/g/hypervigilance.htm