Profuse sweating. Heavy episodes of sweating are definitely connected with vertigo, and actually, accompany episodes in which you are extremely unsteady on your feet. When sweating is caused by vertigo, it will be concentrated in the upper body. The forehead will not only sweat profusely but will also feel clammy and cold. The neck will also experience similarly profuse sweating, accompanied by a chill, and so will the chest. Vertigo is particularly associated with these damp chills, and if you experience this, you need medical attention.