Read below about feeling completely normal before fainting, including causes and common questions. Or get a personalized analysis of your feeling completely normal before fainting 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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10 Potential Feeling Completely Normal Before Fainting Causes

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.

  1. 1.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.

    Can be severely acute or chronic.

    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
  2. 2.Atrial Flutter

    Atrial fibrillation or flutter is a common type of abnormal heartbeat. The heart rhythm is fast and irregular in this condition.

    If the flutter only occurs once and there is no underlying heart disease, it is likely to never happen again.

    Rarity:
    Rare
    Top Symptoms:
    shortness of breath, racing heart beat, lightheadedness, deep chest pain, behind the breast bone, shortness of breath on exertion
    Urgency:
    In-person visit
  3. 3.Long Qt Syndrome

    Long QT syndrome (LQTS) is a disorder of the heart's electrical activity. It can cause sudden, uncontrollable, dangerous arrhythmias in response to exercise or stress. Arrhythmias are problems with the rate or rhythm of the heartbeat.

    Resolves after stopping medication that causes it

    Rarity:
    Common
    Top Symptoms:
    racing heart beat, brief fainting episode, not having protected the body during the fall, feeling completely normal before fainting
    Urgency:
    Primary care doctor
  4. 4.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
  5. 5.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

    Feeling Completely Normal Before Fainting Checker

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  6. 6.Supraventricular Tachycardia

    Supraventricular tachycardia (SVT) is a form of arrhythmia that causes the heart to beat too quickly and begins in the heart's upper chambers. The most common symptoms include a racing heart, lightheadedness and palpitations.

    Many people don't require treatment; however, it is considered if the episodes are long or frequent.

    Rarity:
    Rare
    Top Symptoms:
    fatigue, shortness of breath, racing heart beat, lightheadedness, deep chest pain, behind the breast bone
    Symptoms that always occur with supraventricular tachycardia:
    abnormally high heartrate
    Urgency:
    In-person visit
  7. 7.Third Degree Atrioventricular Nodal Block

    3rd degree atrioventricular nodal block is the most severe form of conduction blockage.

    Indefinite

    Rarity:
    Rare
    Top Symptoms:
    shortness of breath, racing heart beat, tight, heavy, squeezing chest pain, lightheadedness, deep chest pain, behind the breast bone
    Symptoms that never occur with third degree atrioventricular nodal block:
    swelling of one leg, swelling of one foot, swollen ankle
    Urgency:
    Primary care doctor
  8. 8.Stress - Induced Cardiomyopathy

    In this recently recognized heart problem, extreme emotional stress can lead to severe (but often short-term) heart muscle failure. Broken heart syndrome is also called stress-induced cardiomyopathy.

    Most patients make full recovery within one to two months.

    Rarity:
    Rare
    Top Symptoms:
    shortness of breath, racing heart beat, muscle aches, deep chest pain, behind the breast bone, excessive sweating
    Urgency:
    Primary care doctor
  9. 9.Eisenmenger Syndrome (Tardive Cyanosis)

    Eisenmenger syndrome is a complication due to a heart defect. The defect causes increased blood flow to the lungs instead of the body.

    This condition is considered irreversible, but heart transplantation is an option for some patients.

    Rarity:
    Rare
    Top Symptoms:
    shortness of breath, racing heart beat, shortness of breath on exertion, shortness of breath when lying down, decreased exercise tolerance
    Urgency:
    Primary care doctor
  10. 10.Ebstein Anomaly of the Tricuspid Valve

    Many heart conditions are present from birth (congenital), and some can cause the valves to function improperly, resulting in symptoms such as poor blood circulation, fatigue, and difficulty breathing.

    Prognosis depends heavily on severity of the heart condition

    Rarity:
    Rare
    Top Symptoms:
    shortness of breath, racing heart beat, severe fatigue, lightheadedness, deep chest pain, behind the breast bone
    Urgency:
    Primary care doctor

Questions Your Doctor May Ask About Feeling Completely Normal Before Fainting

  • 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.How long were you unconscious?
  • Q.Do you notice your heart beating hard, rapidly, or irregularly (also called palpitations)?
  • Q.Have you ever been diagnosed with diabetes?

If you've answered yes to one or more of these questions, try our feeling completely normal before fainting symptom checker to find out more.

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Feeling Completely Normal Before Fainting Symptom Checker Statistics

  • People who have experienced feeling completely normal before fainting have also experienced:

    • 10% Nausea
    • 7% Lightheadedness
    • 4% Dizziness
  • People who have experienced feeling completely normal before fainting were most often matched with:

    • 9% Aortic Valve Regurgitation
    • 9% Long Qt Syndrome
    • 6% Atrial Flutter
  • Source: Aggregated and anonymized results from visits to the Buoy AI health assistant (check it out by clicking on “Take Quiz”).

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