This symptom is typically seen in about 70% of cases as the first sign that something is going on. The term “resting” is used because the person is doing just that, resting, and has a tremor present. This is different from a “purposeful tremor” that is seen when some individuals attempt to perform a task. A resting tremor usually starts as one finger, hand or foot moving (on one side of the body) with the inability to control or stop it. This tremor usually stops on its own though when a person begins an action.