What are the typical symptoms of a panic attack?

Panic. Sudden intense fear or apprehension, accompanied by sweating, shaking, fast heart beats, shortness of breath, dizziness, nausea, choking, chest discomfort, numbness & chills.
Brief intense fear. Brief intense fear or discomfort arising over 10 minutes is defined as a panic attack when associated with other symptoms, like sweating, shaking, chest pain, palpitations, nausea, dizziness, or fears of dying or going crazy.