I often experience extreme lightheadedness, dizziness, loss of peripheral vision, feeling faint, and muscle spasms/sudden loss of strength in my arms or legs when I stand up. I have a desk job, and have always attributed these episodes to standing up too fast. However, these episodes are becoming alarmingly frequent and intense, and I often have to lean against a wall to avoid falling down, for up to five minutes. I am overweight, but my blood pressure is normal. I take 20mg. flouexitine daily, at bedtime. I am worried that this is more serious than inner ear or low blood pressure. Any thoughts?
Other causes of orthostatic hypotension include the following:
* Cardiogenic (heart related) orthostatic hypotension.
* Hypovolemia (a drop in the volume of blood).
* Dehydration (low fluid volume in the body)
* Immobility (for instance, staying in bed for a long time)
* Primary adrenal insufficiency
* Heart conditions, including heart attack, heart failure, and valve disease
* Anaemia (low red blood cell count)
* Neurogenic orthostatic hypotension
* Sensory neuropathies
* Diseases of the endocrine system, including diabetes and thyroid conditions
* Medication (high doses of blood pressure medications or medications for depression)
* Hot weather
* Multiple system atrophy, Shy-Drager, Parkinson's, dementia with Lewy bodies.
* Medullary strokes or injuries (rare)
* Wernickes syndrome (rare, related to thiamine deficiency)
* Peripheral neuropathy, especially diabetes and amyloidosis
* Spinal cord lesions
* PAF - pure autonomic failure or idiopathic orthostatic hypotension.
* Dopamine beta-hydroxylase deficiency (hereditary, very rare)
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