What causes fatigue and heart rate altered? 35 possible conditions

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...

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2

Congestive Heart Failure (CHF)

Congestive heart failure is a chronic condition that affects the four chambers of the heart. Early symptoms include fatigue and weight gain. Irregular heart beat and wheezing indicate a worsening.

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3

Dehydration

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

Dehydration occurs when you lose more fluid than you drink. The most common cause of water loss from the body is excessive sweating. Headaches, dizziness, and decreased urination are symptoms.

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4

Anorexia Nervosa

Anorexia is an eating disorder in which obsessive worry about body weight and the food you eat can result in severe weight loss. Symptoms include constipation, missed period, and thinning hair.

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5

Congestive (Dilated) Cardiomyopathy

Congestive cardiomyopathy, also known as dilated cardiomyopathy, is characterized by a weak primary pumping chamber in the heart. Your heart automatically attempts to correct for this inefficiency. In turn, thi...

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6

Hypothyroidism

The thyroid gland produces a hormone that controls how your cells use energy (metabolize). Hypothyroidism occurs when the body doesn't produce enough. Untreated, it can cause comlications like obesity and heart disease.

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7

Infectious Mononucleosis

Infectious mononucleosis, or "mono," is a group of symptoms caused by the Epstein-Barr virus. One potential symptom is a pink rash that looks like the measles.

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8

Hypovolemic Shock

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

Hypovolemic shock is a life-threatening condition that results when you lose more than 20 percent (one-fifth) of your body's blood or fluid supply. This severe fluid loss makes it impossible for the heart to pum...

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9

Cardiogenic Shock

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

Cardiogenic shock is a rare condition in which the heart is so damaged that it is unable to supply sufficient blood to bodily organs. Sweating and cold extremities are potential signs of this condition.

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10

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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11

High Blood Pressure Overview

High blood pressure (hypertension) increases your risk for heart attack, stroke, coronary heart disease, and other serious health problems. Left untreated, high blood pressure can damage blood vessels and vital organs.

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12

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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13

Mitral Valve Prolapse

Your mitral valve is located on the left side of your heart, between two chambers, the atrium and the ventricle. Blood is pumped from the left atrium through the mitral valve and into the left ventricle on its way t...

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14

Sickle Cell Anemia

Sickle cell anemia is a genetic disease that causes red blood cells to have an abnormal shape, causing blood flow problems. This can lead to tissue damage and pain, as well as enlarged spleen, anemia, and other symptoms.

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15

Hyperthyroidism

The thyroid gland produces a hormone that controls how your cells use energy (metabolize). Hyperthyroidism occurs when the body produces excessive amounts, causing rapid heart rates, weight loss, and heat intolerance.

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16

Graves' Disease

Graves disease is an autoimmune disorder that leads to hyperthyroidism and causes thyroid swelling.

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17

Pneumothorax (Collapsed Lung)

Pneumothorax is a collapsed lung. This occurs when air becomes trapped in the space around the lungs. Along with a steady ache in the chest and shortness of breath, your skin or lips may turn blue.

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18

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...

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19

Dissection of the Aorta

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

The aorta is a large artery that carries blood out of your heart. If you experience a dissection of the aorta, it means that blood has entered the wall of the artery, between the inner and middle layers. This can happe...

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20

Getting a Handle on Aspiration Pneumonia

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

Aspiration pneumonia is an inflammation of your lungs and bronchial tubes that happens after foreign matter is inhaled. Symptoms include chest pain, wheezing, and blue discoloration of the skin.

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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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