The main symptom of<unk>  is focal or widespread involuntary muscle activity (fasciculation). The<unk>  twitches usually have a constant location. Other common symptoms are generalized fatigue or weakness, paraesthesia or numbness, and muscle cramping or spasms. Anxiety and somatic symptom disorders and symptoms are commonly reported. Muscle stiffness may also be present; if muscle weakness is not also present, and cramps are more severe, the stiffness may be categorized instead as cramp fasciculation syndrome. Cramp fasciculation is a variant of BFS which presents with muscle pain and exercise intolerance. BFS symptoms are typically not accompanied by severe muscle weakness, and are typically present when the muscle is at rest. Individuals with BFS may have perceived weakness which is the sensation of a fatigued limb, but is not true clinical weakness. Fasciculations can move from one part of the body to another.
Benign fasciculation syndrome
Hard flaccid syndrome
Cramp fasciculation syndrome
Dopamine-responsive dystonia
Stiff skin syndrome
Klumpke paralysis
Babinski–Nageotte syndrome
Dejerine–Roussy syndrome