Basic Facts About Panic Attacks The Anxiety Network This is the experience of those who endure panic attacks. many keep their experiences secret, for they are embarrassed and at a loss for words to describe what happens to them. Panicattacks can either be expected (from an anxious state), or unexpected (from a calm state), and are defined as a surge of intense fear or discomfort that reaches its peak within minutes. to be considered a panic attack, the person must experience four or more of these symptoms during that time:. A panic attack is how to describe panic attack a sudden episode of intense fear that triggers severe physical reactions when there is no real danger or apparent cause. panic attacks can be very frightening. when panic attacks occur, you might think you're losing control, having a heart attack or even dying. Panicattacks typically begin suddenly, without warning. they can strike at any time — when you're driving a car, at the mall, sound asleep or in t...