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V ertigo of sudden onset lasting a few minutes and in extreme cases several hours or even up to 2 days.
Consciousness is not impaired.
Frequency varies weeks to months
Episodic vertigo related to migraine vestibular migraine?
Onset : at any age, peak fourth decade in men and a "plateau" between the third and fifth decades in women.
Duration: Few seconds to several hours
78% Mono - symptomatic Vertigo
32% not associated with headache
In the symptom-free interval
66% of the patients showed mild central ocular motor signs such as vertical (48%) and/or horizontal (22%) saccadic pursuit, gaze-evoked nystagmus (27%), moderate positional nystagmus (11%), and spontaneous nystagmus (11%).