Acute peripheral vestibular lesion: usually presents with prostrating vertigo without central nervous system symptoms. Be alert to headache which, although occurring with migraine, can also occur with a cerebellar haemorrhage in association with vertigo,
Benign paroxysmal positioning vertigo: Short lived vertigo on positioning, with common occurrence on getting into, out of, or rolling over in bed.
Uncompensated peripheral vestibular lesion: Persistent balance symptoms, usually aggravated by movement with sometimes visually induced symptoms of unsteadiness or vertigo with a moving visual scene.
Postural phobic vertigo: A condition with or without an underlying vestibular abnormality where symptoms have a situational occurrence, often with stress and a busy visual environment. This can lead to a fear of undertaking normal activities - hence the word phobic.
Bilateral vestibular failure: Primarily unsteadiness with oscillopsia or movement of the environment, without vertigo when there is complete loss of vestibular function.