
What Causes A Sudden Onset Of Dizziness?

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Sudden vertigo could be a sign of headache, Meniere's disease, or seizure
Detailed Answer:
Good afternoon. I'm sorry this cataclysmic event happened. If the episode of "dizziness" came out of nowhere...and to me it sounds as if your husband suddenly became VERTIGINOUS as in the WORLD spinning around and if this was also accompanied by a significant loss of hearing in one ear with ringing in the ears and/or nausea/vomiting that decked him for 45 min. then, he may have just experienced his first episode of HYDROPS or MENIERE's disease. This would be best evaluated by an ENT specialist.
If on the other hand the picture is more of MIGRAINE daily, meaning throbbing or pounding headaches on one side of the head of a severe nature with nausea/vomiting, sensitivity to light and sound (photo/phonophobia) that last at least 4 hrs.-72 hrs. then, the dizziness you describe could be representative of a phenomenon known as VERTIGINOUS MIGRAINE. Treatment for this condition is to target the MIGRAINE headache for the most part and to make sure he stops having DAILY headaches. He should see either a headache specialist or a neurologist who has an interest in headache since this can become complex in terms of treating adequately being careful not to OVERtreat.
The other thing I would be concerned about is the possibility of some type of cerebrovascular phenomenon that may have occurred at the level of the vertebrobasilar artery or the anterior inferior cerebellar or posterior inferior cerebellar arteries causing a sudden loss of blood supply to the brainstem/cerebellum. In other words, he may have had a TIA and so in that light I think a neurologist should definitely take a look at things and potentially order an MRI of the brain with MRA of the head and neck and to also include stroke protocol parameters such as diffusion/perfusion weighted imaging studies.
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I sincerely hope you start to feel a bit better and are able to take advantage of the information I've mentioned in order to obtain the best treatment possible and start turning things around.
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