Anxiety and fear both are alerting signals and act as a warning of an internal and external threat. Anxiety can be conceptualized as a normal and adaptive response that has lifesaving qualities, and warns of threats of bodily damage, pain, helplessness, possible punishment, or the frustration of social or bodily needs; of separation from loved ones; of a menace to one’s success or status; and ultimately of threats to unity or wholeness. It prompts a person to take the necessary steps to prevent the threat or to lessen its consequences.

This preparation is accompanied by increased somatic and autonomic activity controlled by the interaction of the sympathetic and parasympathetic nervous systems. Principally, the personality disorder is the part of the man that can be the bad things for him/ her and the environment, especially the family.  This further information may be helpful for you.

Anxiety disorders are among the most prevalent mental disorders in the general population. Nearly 30 million persons are affected in the United States, with women affected nearly twice as frequently as men. Anxiety disorders are associated with significant morbidity and often are chronic and resistant to treatment. Anxiety disorders can be viewed as a family of related but distinct mental disorders, which include the following as classified in the some books and the magazines that you can get in the book stores: (1) panic disorder with or without agoraphobia; (2) agoraphobia with or without panic disorder; (3) specific phobia; (4) social phobia; (5) obsessive-compulsive disorder (OCD); (5) post traumatic stress disorder (PTSD); (6) acute stress disorder.

Knowing more about this, you need to go out from this problem and then make yourself better. Do not want to be sad in a long time and try to free yourself from the pressures that can make you feel anxious.