I also need to know the typical signs of it.

KNOW WHAT TRIGGERS YOUR PANIC DISORDER IS RITICAL:

http://www.anxiety-panic-treatment.com/panic-disorder/

1. Recurrent Panic Attacks
A panic attack is a sudden and intense feeling of terror, fear or apprehension, without the presence of actual danger. The symptoms of a panic attack usually happen suddenly, peak within 10 minutes and then subside. However, some attacks may last longer or may occur in succession, making it difficult to determine when one attack ends and another begins.
Many people may experience a panic attack once, or even a few times during their lives. However, in order for a panic disorder diagnosis to be made, one must experience recurring panic attacks that are not caused by the effects of drugs, alcohol or another medical or psychological condition.

2. Persistent Worry About the Implications of Panic Attacks
Because panic attacks result in such intense physical sensations, it is not uncommon for some people to become convinced they are related to an undiagnosed and possibly life-threatening medical condition. This may mean trips to the nearest emergency room or doctor’s office and intensive testing to rule out physical disease. But, even when assured that these symptoms are not life-threatening, it may do little to put the sufferer’s mind at ease. The feelings experienced during panic attacks are so overwhelming and uncontrollable, sufferers can become convinced they are going to die, are going crazy or that some medical condition has gone undiagnosed.

3. Behavioral Changes
So frightening are the symptoms of panic disorder that you may develop behavioral changes in an effort to avoid having another panic attack. For example, this may include avoiding physical exertion because the associated breathlessness and increased heart rate mimic panic symptoms.
Agoraphobia is a common complication of panic disorder that includes an intense fear (panic response) of being in certain situations in which escape is difficult or potentially embarrassing, or where help is not readily available. Such situations may include leaving home alone, being home alone, traveling by car, train or bus, being in an elevator, being in a crowd, being in a large store or mall, being on a bridge or standing in a line.

4. Persistent Concern About Having Another Panic Attack
Because panic attacks associated with panic disorder occur suddenly and without a known cause, may people find themselves worrying about when and where the next attack will occur. The anticipation of the next attack may cause you to feel anxious and interfere with your ability to fully function in your everyday life.

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