There are numerous causes of dizziness and tinnitus. Some common ones are related to ear problems, such as Meniere's disease, sudden deafness, and neurological tinnitus.
On the other hand, issues within the brain can also be the cause. Common brain - related problems include intracranial tumors, meningiomas, acoustic nerve tumors, brain trauma. It could also be due to intracranial vascular malformations, glomus jugulare tumors, etc.

