Tremor

Tremors are a trembling or shaking, or a sense of a quivering or vibrating feeling. Tremors can have many different causes in patients with ME/CFS.

Symptom recognition
Tremors are not generally used in diagnosis criteria for ME/CFS.

Possible causes
Tremors can be caused by:
 * Anxiety, nervousness or emotional stress
 * As a sensory symptom, in reaction to a toxin
 * Weakness, e.g. muscle weakness
 * As a symptom of different diseases, including postural orthostatic tachycardia syndrome (POTS) and other forms of orthostatic intolerance
 * As a side effect of certain medications, including dextroamphetamine, fluoxetine (Prozac), fluvoxamine (Luvox), neurotonin (Gabapentin), paroxetine (Paxil, Seroxat), sertraline (Zoloft)