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  2. Sleep paralysis - Wikipedia

    en.wikipedia.org/wiki/Sleep_paralysis

    Going to bed before the usual hour is a frequent cause of night-mare, as it either occasions the patient to sleep too long or to lie long awake in the night. Passing a whole night or part of a night without rest likewise gives birth to the disease, as it occasions the patient, on the succeeding night, to sleep too soundly.

  3. Paroxysmal nocturnal dyspnoea - Wikipedia

    en.wikipedia.org/wiki/Paroxysmal_nocturnal_dyspnoea

    With paroxysmal nocturnal dyspnea specifically, it is felt while sleeping and causes a person to wake up after about 1 to 2 hours of sleep. [ 3 ] More serious forms of dyspnea can be identified through accompanying findings, such as low blood pressure, decreased respiratory rate, altered mental status, hypoxia, cyanosis, stridor, or unstable ...

  4. Reflex syncope - Wikipedia

    en.wikipedia.org/wiki/Reflex_syncope

    Episodes of vasovagal syncope are typically recurrent and usually occur when the predisposed person is exposed to a specific trigger. Before losing consciousness, the individual frequently experiences early signs or symptoms such as lightheadedness, nausea, the feeling of being extremely hot or cold (accompanied by sweating), ringing in the ears, an uncomfortable feeling in the heart, fuzzy ...

  5. If You Have Frequent Dizzy Spells, Read This - AOL

    www.aol.com/lifestyle/frequent-dizzy-spells-read...

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  6. Benign paroxysmal positional vertigo - Wikipedia

    en.wikipedia.org/wiki/Benign_paroxysmal...

    Lack of sleep (required amounts of sleep may vary widely) Stress; An episode of BPPV may be triggered by dehydration, such as that caused by diarrhea [citation needed]. BPPV is one of the most common vestibular disorders in people presenting with dizziness; a migraine is implicated in idiopathic cases. Proposed mechanisms linking the two are ...

  7. Vertigo - Wikipedia

    en.wikipedia.org/wiki/Vertigo

    Dizziness affects approximately 20–40% of people at some point in time, while about 7.5–10% have vertigo. [3] About 5% have vertigo in a given year. [10] It becomes more common with age and affects women two to three times more often than men. [10] Vertigo accounts for about 2–3% of emergency department visits in the developed world. [10]