What causes fainting and fast heart rate? 13 possible conditions

Viewing 13 of 13 results

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

1

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...

Read more »

2

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 ...

Read more »

3

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.

Read more »

4

Pulmonary Embolism

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

A pulmonary embolism is a blood clot that affects blood flow to the lungs. It can damage part of the lung due to restricted blood flow, decrease blood oxygen. The most common symptom is shortness of breath.

Read more »

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.

Read more »

6

Alcoholic Liver Disease

Damage to the liver from excessive drinking can lead to ALD. Years of alcohol abuse cause the liver to become inflamed and swollen. This damage can also cause scarring known as cirrhosis. Cirrhosis is the final stage o...

Read more »

7

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...

Read more »

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.

Read more »

9

Alcohol Withdrawal Syndrome

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

Alcohol withdrawal syndrome (AWS) is the name for the symptoms that occur when a heavy drinker suddenly stops or significantly reduces their alcohol intake. With AWS, you may feel mild anxiety and fatigue. You may als...

Read more »

10

Carbon Monoxide Poisoning

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

Carbon monoxide poisoning occurs when we inhale too much carbon monoxide. It can lead to tissue damage and possibly death. Signs include a dull headache, nausea, confusion, and blue lips or skin.

Read more »

11

Wolff-Parkinson-White Syndrome

Wolff-Parkinson-White syndrome is a birth defect in which the heart develops an extra electrical pathway, which can lead to a rapid heart rate (tachycardia). Medications may help alleviate the symptoms. However, ...

Read more »

12

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...

Read more »

13

Autonomic Neuropathy

Autonomic neuropathy (AN) is a condition that results from damage to nerves that assist in organ and organ system functioning. This nerve damage disturbs signal processing between the autonomic nervous system and th...

Read more »

This feature is for informational purposes only and should not be used to diagnose.
Please consult a healthcare professional if you have health concerns.
  • Page 1 of 1
Advertisement
Add another symptom to narrow down the possibilities

I'm experiencing:

Choose from list of symptoms:

Advertisement
Advertisement