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Learn about your dizziness and lightheadedness before passing out, including causes and common questions. Or get a personalized analysis of your dizziness and lightheadedness before passing out from our A.I. health assistant. At Buoy, we build tools that help you know what’s wrong right now and how to get the right care.

Dizziness and Lightheadedness Before Passing Out Checker

Take a quiz to find out why you’re having dizziness and lightheadedness before passing out.

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Your Dizziness and Lightheadedness Before Passing Out May Also be Known as:
Dizzy before fainting
Dizzy before passing out
Lightheaded before fainting
Lightheaded before passing out

Top 3 Dizziness and Lightheadedness Before Passing Out Causes

  1. 1.Carotid Sinus Syncope

    Carotid Sinus Syncope is a pattern of fainting caused by abnormal response to touching the neck arteries (like tying a tie).

    You should go to the ER as soon as possible, where diagnosis can be established using your facts and an ECG to measure your heart signals. Treatment is just education on what causes you to faint.

    Rarity:
    Common
    Top Symptoms:
    brief fainting episode, dizziness and lightheadedness before passing out, feeling nauseated, warm, and lightheaded before passing out, fainting after turning head to one side
    Symptoms that always occur with carotid sinus syncope:
    brief fainting episode
    Urgency:
    Hospital emergency room

    Dizziness and Lightheadedness Before Passing Out Checker

    Take a quiz to find out why you’re having dizziness and lightheadedness before passing out.

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  2. 2.Aortic Valve Regurgitation

    Aortic valve regurgitation is a condition that occurs when your heart's aortic valve doesn't close tightly. This allows some of the blood that was just pumped out of the lower left chamber (left ventricle) to leak back into it.

    You should visit your primary care physician within the next 24 hours if you are feeling fatigue, weakness, shortness of breath, chest pain, irregular pulse or sensations of a rapid, fluttering heartbeat. Depending on severity, you may or may not need treatment.

    Rarity:
    Common
    Top Symptoms:
    shortness of breath, racing heart beat, shortness of breath on exertion, shortness of breath when lying down, brief fainting episode
    Urgency:
    Primary care doctor
  3. 3.Orthostatic Syncope (Fainting)

    Orthostatic syncope refers to a type of loss of consciousness caused by rapidly standing up from a sitting position, and not enough blood reaches the head. This can cause a person to pass out, but then come back to consciousness without lasting effects.

    Losing consciousness can be scary, but your case seems to be benign without any long lasting effects. However, it might be good to consult a doctor over the telephone to discuss whether a visit is needed.

    Rarity:
    Uncommon
    Top Symptoms:
    lightheadedness, brief fainting episode, dizziness and lightheadedness before passing out, fainting after standing up, having fainted multiple times
    Symptoms that always occur with orthostatic syncope (fainting):
    brief fainting episode, fainting after standing up
    Urgency:
    Phone call or in-person visit

Questions Your Doctor May Ask About Dizziness and Lightheadedness Before Passing Out

  • Q.Have you been feeling more tired than usual, lethargic or fatigued despite sleeping a normal amount?
  • Q.If this interview is about someone else, or "myself" is selected by accident, it is very important for us not to miss this question: has the person regained consciousness?
  • Q.Any fever today or during the last week?
  • Q.Have you experienced any nausea?

If you've answered yes to one or more of these questions, check our dizziness and lightheadedness before passing out symptom checker.

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Dizziness and Lightheadedness Before Passing Out Symptom Checker Statistics

  • People who have experienced dizziness and lightheadedness before passing out have also experienced:

    • 6% Nausea
    • 5% Throbbing Headache
    • 5% Dizziness
  • People who have experienced dizziness and lightheadedness before passing out were most often matched with:

    • 3% Aortic Valve Regurgitation
    • 2% Carotid Sinus Syncope
    • 2% Orthostatic Syncope (Fainting)

Dizziness and Lightheadedness Before Passing Out Checker

Take a quiz to find out why you’re having dizziness and lightheadedness before passing out.

Take a quiz