A 21-year-old man was admitted to the hospital owing to recurrent, transient episodes of dysarthria, dysphagia, and limb weakness over the course of 3 days. Although these symptoms had resolved after 3 hours’ rest, they recurred 2 hours prior to hospital admission. In addition, the patient had begun to experience weakness and numbness of his limbs, with more severe symptoms on the right side. The symptoms began to gradually resolve 2 hours following admission, and normal function had returned within 2 days. No significant history of illness was noted in the patient or among family members.