Take Two Grateful Deads and Call Me in the Morning
If you've never suffered a panic attack, the idea of oneof being, in the absence of any real threat, suddenly overwhelmed by fearcan seem inconceivably strange. Try to imagine fear flooding your mind with such fierce momentum that you struggle to catch your breath, so convincing is the sensation that everything is spinning horribly out of control. Once that happens and the fear has taken over, it doesn't matter if the threat is real or not.