(n.) A sensation resembling that made by the creeping of ants on the skin.

ache aching agitation chilblains chill chilliness chilling chills of fear cold creeps cold shivers cold sweat cryopathy disquiet disquietude dithers duck bumps fear and trembling formication frostbite goose bumps goose pimples gooseflesh heartquake horripilation inquietude jimjams kibe nervousness palpitation perturbation quaking quiver of terror shivering shivers sweat thrill of fear trepidation trepidity uneasiness