What causes dizziness and palpitations? 16 possible conditions

Viewing 16 of 16 results

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

1

Hyperventilation

Hyperventilation happens when you suddenly start breathing very quickly. Exhaling more than you inhale causes low carbon dioxide levels, which leads to lightheadedness and tingling in the fingers.

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2

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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3

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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4

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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5

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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6

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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7

Atrial Flutter

Atrial flutter (AFL) is a type of abnormal heart rate, or arrhythmia. It occurs when the upper chambers of your heart (the atria) beat too fast. When the top of your heart (atria) beats faster than the botto...

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8

Drug Allergy Overview

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

Drug allergies occur when your immune system mistakes a drug for a harmful substance, triggering an inflammatory response (allergic reaction). This reaction is different from the side effects caused by a medication.

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9

Heart Murmurs and Other Sounds

The most common abnormal heart sound is a heart murmur. A murmur is a blowing, whooshing, or rasping sound that occurs during a heartbeat. There are two kinds of heart murmurs, innocent and abnormal murmurs. An innocen...

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10

Atrial Fibrillation and Flutter

Atrial fibrillation and flutter are irregular heart rhythms that occur when the upper chambers of the heart beat irregularly or too fast. Fibrillation can be sustained or can occur in bursts. Flutter is more rapid an...

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11

High Blood Pressure Overview

Hypertension, or high blood pressure (HBP), increases the risk of heart attack, stroke & other health problems. Learn HBP symptoms & get treatment under an MD's care.

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12

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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13

Hypertrophic Cardiomyopathy

Hypertrophic cardiomyopathy (HCM) is a condition where your heart muscle, or myocardium, becomes thicker than normal. This interferes with your heart's ability to pump blood.In most cases, HCM doesn't cause an...

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14

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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15

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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16

Agoraphobia

Agoraphobia is an anxiety disorder. People with agoraphobia avoid situations that might cause them to feel: trapped helpless panic embarrassment fearApproximately 0.8 percent of the adult population ha...

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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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