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Akathisia
Conversion disorder
Drug toxicity (anticholinergic, phenytoin, valproate, carbamazepine)
Dystonic reaction
Electrolyte abnormality
Hypocalcemic tetany
Magnesium
Mandible dislocation
Meningitis
Peritonsillar abscess
Rabies
Seizure
Strychnine poisoning
Stroke
Temporomandibular disorder
Torticollis
Hypocalcemic tetany
Magnesium
Acute tetanus
Herpes zoster oticus
Akathisia
Crotaline envenomation
Conversion disorder
Herpes zoster
Drug toxicity 
Stonefish envenomation