In the absence of obvious incentives, patients often have excessive worry and tension, and tension often has no clear object and content. In addition, patients are often accompanied by dizziness, chest tightness, palpitation, shortness of breath, dry mouth, frequent urination, urgency, sweating, tremor and other physical symptoms. This anxiety usually lasts for several months.

The second acute anxiety attack (also called panic attack);

In the normal daily life environment, when there is no fear situation, the patient suddenly appears extreme fear and tension, accompanied by a sense of dying or losing control, and at the same time, there are obvious symptoms of autonomic nervous system, such as chest tightness, palpitation, dyspnea, sweating, chills and so on. It usually lasts from a few minutes to several hours. The attack suddenly began, quickly reached its peak, and the consciousness was clear during the attack. Attention! This type of anxiety is sudden and unpredictable. Because the clinical manifestations of acute anxiety attacks are very similar to those of coronary heart disease attacks, patients often dial "120" to see the emergency department of cardiology. Although patients seem to have severe symptoms, most of the related examination results are normal, so the diagnosis is often unclear, which makes the misdiagnosis rate of acute anxiety attack high, which not only delays treatment, but also wastes medical resources.

The third phobia (including social phobia, place phobia and specific phobia):

The core manifestation of phobia is panic attack, just like acute anxiety attack. The difference is that the anxiety attack of phobia is caused by some specific places or situations, and patients will not cause anxiety when they are not in these specific places or situations. For example, I am afraid of social occasions or interpersonal communication, or I am afraid of certain environments, such as airplanes, squares and crowded places. The occurrence of anxiety in phobia is often predictable, and patients often take avoidance behavior to avoid anxiety attacks. A patient is afraid to take the subway or bus. As long as she takes the above means of transportation, she will have an anxiety attack and be extremely painful. In order to avoid anxiety attacks, she will take a taxi to work, because it will be fine.