A 45-year-old woman complains of intolerable paroxysmal facial pain on the left with attacks that last for 1-2 minutes. Attacks are provoked by chewing. The disease onset was two months ago after the overexposure to cold. Objectively: pain at the exit points of the trigeminal nerve on the left. Touching near the wing of the nose on the left induces a pain attack with tonic spasm of the facial muscles. What is the most likely diagnosis?