What can cause chronic dizziness despite a normal caloric test?
Other tests are necessary for a correct diagnosis.
I have read your question and understand your concerns.
Since you had an MRI of the brain and there were no lesions such stroke, cerebellopontine angle tumors that may cause sometimes dizziness, you should not worry about anything serious.
Caloric test is a good test to assess unilateral vestibular deficit but is not sufficient to evaluate the entire vestibular system.
In my opinion, in order to understand correctly your condition, other neuro-otologic tests should be performed.
These tests include electro/videonystagmography (ENG), the rotating-chair test, computerized dynamic posturography, vestibular evoked potentials.
Conditions that may be considered include benign paroxysmal positional vertigo, Meniere's disease, vestibular neuronitis, migraines.
Discuss with your ENT Doctor about these issues.
Hope you found the answer helpful.
In my opinion MS unlikely.
The first step in evaluating MS as a possibility is a thorough neurological examination.
One of the examinations about MS is brain and spinal cord MRI.
Since the brain MRI was okay, this is a strong factor against MS as a possible diagnosis.
Despite your opinion, I don't think your symptoms are typical for MS besides dizziness that may be connected with myriad conditions.
Other tests to evaluate MS include spinal tap and evaluation of the antibodies related to MS, evoked potentials, cervical spine MRI.
Discuss with your Neurologist about these issues.
In good health.
Dr. Erion Spaho, Neurologist, Surgical
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