http://www.nidcd.nih.gov/health/balance/balance_disorders.asp
National Institute on Deafness and Other Communication Disorders
A balance disorder is a disturbance that causes an individual to feel unsteady, giddy, woozy, or have a sensation of movement, spinning, or floating. An organ in our inner ear, the labyrinth, is an important part of our vestibular (balance) system. Find more information on this page including, causes, symptoms, treatments, and other resources.