Giddiness


Dizziness is a term that is used to explain different sensations, such as lightheadedness and spinning. Since feeling dizzy is such an individual experience. Vertigo or dizziness is accompanied by an involuntary, rapid, rhythmic eye movement (nystagmus); giddiness; and feeling as if one is going to faint. Without other symptoms, this condition usually is not serious always.

Causes of dizziness: There are many causes for dizziness and giddiness. Decrease in circulating blood and oxygen to the brain can cause dizziness and fainting. Irregular heart rate or rhythm can result in a sudden reduction in blood flow to the brain and can cause dizziness. Temporary deficiency of blood in the brain secondary to narrowing of the arteries in the brain also can result in dizziness. Sudden change in position can cause a drop in blood pressure and dizziness.

Dizziness can result from taking medications such as vasodilators, decongestants, antidepressants, antihypertensive, antihistamines, or diuretics. Anemia due to blood loss or decreased blood volume or fluid loss from trauma or sweating can also cause dizziness disorders. Dizziness also may occur with diabetes mellitus, multiple sclerosis, and Parkinson's disease.
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