A feeling of being detached from the world (de-realization)
Fear of dying
Numbness or tingling in the limbs or entire body
Chills or hot flushes
Panic attacks and panic disorder are not the same thing. Panic disorder involves recurrent panic attacks along with constant fears about having future attacks and, often, avoiding situations that may trigger or remind someone of previous attacks. Not all panic attacks are caused by panic disorder; other conditions may trigger a panic attack. They might include:
The first step is to rule out the possibility that your symptoms are being caused by a medical condition that is not psychiatric. Among the conditions that produce symptoms similar to those of anxiety are hyperthyroidism or other endocrine problems, too much or too little calcium, low blood sugar, and certain heart problems. Certain medicines also can sometimes cause anxiety. A thorough evaluation by your health care provider will determine if any of these conditions are the cause of your symptoms...
Phobic disorders are intense, persistent, and recurrent fear of certain objects (such as snakes, spiders, blood) or situations (such as heights, speaking in front of a group, public places). These exposures may trigger a panic attack. Social phobia and agoraphobia are examples of phobic disorders.
Post-traumatic stress disorder -- or PTSD -- was considered to be a type of anxiety disorder in earlier versions of the American Psychiatric Association's Diagnostic and Statistical Manual of Mental Disorders. But in 2013, PTSD was reclassified as its own condition. It describes a range of emotional reactions caused by exposure to either death or near-death circumstances (such as fires, floods, earthquakes, shootings, assault, automobile accidents, or wars) or to events that threaten one's own or another person's physical well-being. The traumatic event is re-experienced with fear of feelings of helplessness or horror and may appear in thoughts and dreams. Common behaviors include the following:
Avoiding activities, places, or people associated with the triggering event
Being hypervigilant (you closely watch your surroundings)
Feeling a general sense of doom and gloom with diminished emotions (such as loving feelings or aspirations for the future)
Symptoms such as chest pain, shortness of breath, palpitations, dizziness, fainting, and weakness should not be automatically attributed to anxiety and require evaluation by a doctor.