What causes fainting and palpitations? 19 possible conditions

Viewing 19 of 19 results

See a list of possible causes in order from the most common to the least.

1

Abnormal Heart Rhythms

This condition is considered a medical emergency. Urgent care may be required.

An abnormal heart rhythm (arrhythmia) is a change in the heart's beating pattern. There are many different types with different causes and effects. Possible symptoms are feeling faint, chest pain, and sweating.

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2

Ventricular Tachycardia

This condition is considered a medical emergency. Urgent care may be required.

Ventricular tachycardia (VT) is a very fast heartbeat caused by a malfunction of the heart's pacing mechanism. VT can occur with or without heart disease. Symptoms include fainting, dizziness, and more.

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3

Sick Sinus Syndrome

Sick sinus syndrome (SSS) is a general name for a group of disorders caused by a malfunctioning sinus node. The sinus node acts as a pacemaker inside the heart. Sinus rhythm (the normal beating of the heart) i...

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4

Panic Disorder

Panic disorder occurs when you live in fear of having a panic attack. You are having a panic attack when you feel sudden, overwhelming terror that has no obvious cause. You may experience physical symptoms such as ...

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5

Drug Allergy Overview

This condition is considered a medical emergency. Urgent care may be required.

A drug allergy is an allergic reaction to a medication. Your immune system identifies the drug as foreign and acts to eliminate it from your body.

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6

Cardiomyopathy

Cardiomyopathy is a progressive disease of the heart muscle. Learn about the types, symptoms, treatment, and prognosis of this disease.

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7

Low Blood Sugar (Hypoglycemia)

This condition is considered a medical emergency. Urgent care may be required.

Also known as hypoglycemia, low blood sugar can be a dangerous condition. Hypoglycemia is rare in people who are not suffering from diabetes, the chronic disease that affects the body's ability to regulate blood sugar...

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8

Paroxysmal Supraventricular Tachycardia (PSVT)

This condition is considered a medical emergency. Urgent care may be required.

Paroxysmal supraventricular tachycardia (PSVT) is a faster-than-normal heart rate. It can last from a few minutes to several hours. PSVT is a fairly common type of (arrhythmia) that can occur in a person of any age.

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9

Atrial Fibrillation and Flutter

Atrial fibrillation and atrial flutter are irregular heart rhythms that occur when the upper chambers of your heart (the atria) beat too fast.Atrial fibrillation can be sustained or can occur in bursts. It creates a...

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10

Hypertrophic Cardiomyopathy

Hypertrophic cardiomyopathy (HCM) occurs when the heart muscle (myocardium) becomes thicker than normal. This interferes with your heart's ability to pump blood. Possible symptoms are dizziness, chest pain, and more.

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11

The Catastrophy of Cardiac Tamponade

This condition is considered a medical emergency. Urgent care may be required.

Cardiac tamponade is a condition where the sac that encases your heart fills with fluid and then puts pressure on your heart. This undue pressure keeps the heart from filling with blood properly. When this happens, th...

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12

Aortic Valve Disease

Aortic valve disease is a condition that occurs when the main artery of your body, the aorta, and the left ventricle of the heart malfunction. The aortic valve determines how blood flows from the left ventricle (th...

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13

Post Traumatic Stress Disorder (PTSD)

Post-traumatic stress disorder (PTSD) is a debilitating anxiety disorder that occurs after experiencing or witnessing a traumatic event that involves either a real or perceived threat of injury or death. This ca...

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14

Myocarditis

Myocarditis is inflammation of the heart muscle. It is a rare condition that can be caused by any number of autoimmune diseases, viral, bacterial, or fungal infections, or parasites. When you have an infection or a...

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15

Aortic Valve Stenosis

The aorta is the main artery of the body. Oxygenated blood leaves the heart by way of the aorta and is carried to all parts of the body. The left ventricle is the chamber of the heart that pumps blood into the aort...

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16

Multifocal Atrial Tachycardia and Your Heart

If you have multifocal atrial tachycardia (MAT), your heart is beating much faster than it normally does. This happens when the upper chambers of your heart send too many electrical signals to the lower chambers. It i...

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17

Guillain-Barre Syndrome

This condition is considered a medical emergency. Urgent care may be required.

Guillain-Barre syndrome is a rare but serious autoimmune disorder in which the immune system attacks healthy nerve cells of the peripheral nervous system. This leads to weakness, numbness, and tingling, and ca...

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18

Lyme Disease

Lyme disease is an infectious disease. It is caused by the bacteria Borrelia burgdorferi sensu lato. B. burgdorferi is transmitted to humans via a tick bite from an infected black-legged or deer tick. The tick become...

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19

Aortic Valve Insufficiency

Aortic valve insufficiency (AVI), is also called aortic insufficiency or aortic regurgitation. This condition indicates damage to the aortic valve. AVI affects one out of every 10,000 people between the ages of 30 an...

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This feature is for informational purposes only and should not be used to diagnose.
Please consult a healthcare professional if you have health concerns.
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