Vertigo is the sensation of motion , when no motion is occurring relative to earth gravity. Vertigo is one of the most common reason for medical consultation.
Cause of Vertigo
Vertigo can be Vestibular i.e. dysfunction in the sensory system that controls balance and eye movement or non Vestibular ( e.g. blood flow irregularities) in origin. Sensory organ that was responsible for balance is Ear and Eyes.