Read below about dizziness and light-headedness, including causes and common questions. Or get a personalized analysis of your dizziness and light-headedness 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.

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3 Potential Dizziness and Light - Headedness Causes

  1. 1.Premature Ventricular Contractions

    Premature ventricular contractions (PVCs) are extra, abnormal heartbeats that begin in one of the heart's two lower pumping chambers (ventricles). These extra beats disrupt the regular heart rhythm, sometimes causing a feeling of a skipped beat in your chest.

    This condition is considered irreversible, but it often does not require treatment and will not prevent you from living a healthy life.

    Rarity:
    Uncommon
    Top Symptoms:
    racing heart beat, deep chest pain, behind the breast bone, racing heart beats that lasts for seconds, irregular heart beat, racing heart beat that lasts for minutes
    Symptoms that always occur with premature ventricular contractions:
    racing heart beat
    Urgency:
    In-person visit

    Dizziness and Light - Headedness Checker

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  2. 2.Congenital Long Qt Syndrome

    Congenital Long QT syndrome is a disorder of the heart's electrical activity from birth, causing possibly dangerous rhythm changes.

    Life long

    Rarity:
    Rare
    Top Symptoms:
    racing heart beat, brief fainting episode, not having protected the body during the fall, feeling completely normal before fainting, dizziness and light-headedness
    Urgency:
    In-person visit
  3. 3.Hypertrophic Cardiomyopathy

    Hypertrophic cardiomyopathy (HCM) is a disease in which the heart muscle (myocardium) becomes abnormally thick (hypertrophied). This happens sometimes as a result of long-term elevated blood pressure, and sometimes without any particular reason. The thickened heart muscle can make it harder for the heart to pump blood.

    Hypertrophic cardiomyopathy is a life-long condition, as the heart walls are permanently enlarged.

    Rarity:
    Rare
    Top Symptoms:
    fatigue, shortness of breath, dizziness, racing heart beat, shortness of breath on exertion
    Urgency:
    Primary care doctor

Questions Your Doctor May Ask About Dizziness and Light - Headedness

  • Q.Any fever today or during the last week?
  • Q.Have you been feeling more tired than usual, lethargic or fatigued despite sleeping a normal amount?
  • Q.Have you experienced any nausea?
  • Q.Do you notice your heart beating hard, rapidly, or irregularly (also called palpitations)?

If you've answered yes to one or more of these questions, try our dizziness and light-headedness symptom checker to find out more.

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Dizziness and Light - Headedness Symptom Checker Statistics

  • People who have experienced dizziness and light-headedness have also experienced:

    • 8% Nausea
    • 6% Headache
    • 6% Fatigue
  • People who have experienced dizziness and light-headedness had symptoms persist for:

    • 42% Less Than a Day
    • 25% Less Than a Week
    • 17% Over a Month
  • People who have experienced dizziness and light-headedness were most often matched with:

    • 3% Hypertrophic Cardiomyopathy
  • Source: Aggregated and anonymized results from visits to the Buoy AI health assistant (check it out by clicking on “Take Quiz”).

Disclaimer: The article does not replace an evaluation by a physician. Information on this page is provided as an information resource only, and is not to be used or relied on for any diagnostic or treatment purposes.

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