Hello! I read your question and understand your concern. I agree with your doctors that your balance problems may be related to the inner ear. But they also may be caused by the brain problems or vertebral artery narrowing. The long time you refer with this problems, is more indicating an inner ear problem. Vestibular tests can diagnose disorders such as benign paroxysmal positional vertigo , and perilymph fistula, which commonly occur after head injury; and bilateral vestibular ototoxicity, which commonly is a side effect of medication. I would recommend tests like electronystagmography , electrocochleography , rotational chair test, posturography, fistula test to find out a possible inner ear problem. A brain MRI may be needed if everything results normal. Hearing pathway tests (audiometry, auditory brainstem response, electrocorticography) can also be used for the same purpose, and are frequently combined with vestibular tests. After finding the cause of your problems than we can choose the right treatment. Hope to have been of help! Best wishes! Dr. Abaz Quka