When having a panic attack, a person may feel trembling sensations, especially in the arms, legs, hands, and feet. Similar to other panic attack symptoms, uncontrollable trembling and shaking are a result of the fight or flight reaction. This response is triggered frequently in people with panic disorder and often without cause. Fight-or-flight reactions prepare the body to either fight off or flee from a real or imagined threat in the environment.
“And those who were seen dancing were thought to be insane by those who could not hear the music.”