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Dizziness has many possible causes, including inner ear disturbance, motion sickness and medication effects. Sometimes it's caused by an underlying health condition, such as poor circulation, infection or injury. The way dizziness makes you feel and your triggers provide clues for possible causes.
Other causes of dizziness. 1  Neurological conditions. 2  Some neurological disorders â such as Parkinson's disease and multiple sclerosis â can lead to progressive loss of balance. 3  Medications. 4  Dizziness can be a side effect of certain medications â such as anti-seizure drugs, antidepressants, sedatives and tranquilizers. Benign paroxysmal positional vertigo (BPPV). 2  This condition causes an intense and brief but false sense that you're spinning or moving. 3  These episodes are triggered by a rapid change in head movement, such as when you turn over in bed, sit up or experience a blow to the head. 4  BPPV is the most common cause of vertigo.