Clinical symptoms
-palpitation,pounding heart,or accelerated heart rate
-diaphoresis
-tremors
-shortness of breath or smothering sensation
-feeling of choking
-chest pain or discomfort
-nausea or abdominal distress
-vertigo
-feelings of unreality or of being detached from oneself
-fear of losing control or of going crazy
-fear of dying
-numbness or tingling sensations (paresthesia)
-chills or hot flashes
-diagenostic characteristics