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Summary. 1  Generally, most dizziness is caused by problems of the inner ear and is treatable. 2  Common causes of inner ear dizziness include benign paroxysmal positional vertigo (BPPV), migraine and inflammation of the inner ear balance apparatus called vestibular neuritis.
Other causes of dizziness. 1  Neurological conditions. 2  Medications. 3  Anxiety disorders.  Low iron levels 1  (anemia). Low blood sugar (hypoglycemia).  Overheating and 1  dehydration. Symptoms.  Risk factors.