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Why do i keep fainting?

By Anonymous June 15, 2015 - 9:25pm
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Whenever i am laying down for a long period of time, as soon as i stand up i get extremely dizzy and i get a ringing in my ear and i fall on to my bed and have to just lay there for about a minute then when i get up to recover i have a splitting head ache. My parents don't trust me that something could actually be wrong. I work out about 5 days a week and i drink lots of water but these fainting spells happen just about everyday sometimes twice a day. What could be wrong with me?

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HERWriter Guide

Hi Anon

Thank you for reaching out to us!

Fainting is the sudden loss of consciousness. In general, fainting is caused by decreased blood flow to the brain.

This can occur due to:

Vasovagal spells (most common cause)—simple fainting that can occur:
During medical procedures
During times of high stress, trauma, or fright
After standing still for a long period of time
Low blood pressure, especially when standing (called orthostatic hypotension)
Anemia due to blood loss
Hypoglycemia (low blood sugar)
Side effect of a medication
Stroke or transient ischemic attack
Too rapid or too slow heart rhythm, abnormal rhythm
Organic heart problems such as:
Hypertrophic cardiomyopathy
Pulmonary stenosis
Constrictive pericarditis

The doctor will ask about your symptoms and medical history, and perform a physical exam.

Tests may include:

Blood tests—to look for anemia, hypoglycemia, low potassium, and low magnesium
Electrocardiogram (EKG) —a test that records the heart's activity by measuring electrical currents through the heart muscle
Holter monitoring —a mobile EKG test that is performed over 24 hours (or more) while you go about your usual daily activities
Head CT scan —a type of x-ray that uses a computer to make pictures of the brain
Electroencephalogram (EEG) —a test that records the brain's activity by measuring electrical currents through the brain
MRI scan of the brain—a test that uses magnetic waves to make pictures of structures inside the head
Echocardiogram —a test that uses high-frequency sound waves (ultrasound) to examine the size, shape, and motion of the heart
Tilt table testing—a tilted table that is used to provoke syncopal symptoms (medication may be used)
Cardiac catheterization —a tube-like instrument inserted into the heart through a vein or artery (usually in the arm or leg) to detect problems with the heart and its blood supply
Magnetic resonance angiogram (MRA) and computed tomography angiogram (CTA) tests—a test to evaluate the blood vessels inside the brain
Treatment will depend on the underlying condition that has caused fainting. For example:

Abnormal heart rhythms can be treated with medications or by implanting a pacemaker .
If a medication is causing syncope , it may need to be changed or discontinued.
Anemia or other blood abnormalities should be treated.
If you are diagnosed as having fainted, follow your doctor's instructions .

If you feel any warning signs, such as dizziness or lightheadedness, sit or lie down immediately so that you don't get hurt falling during a fainting spell.

In a recent randomized trial involving 223 patients with vasovagal syncope, training to perform certain maneuvers during warning signs of an impending spell reduced the risk of recurrent symptoms. These physical counterpressure maneuvers, designed to rapidly raise blood pressure and increase blood flow to the brain, included: *

Crossing the legs while tensing the muscles of the legs, abdomen, and buttocks
Forcefully squeezing a rubber ball or any other available object as hard as possible in the dominant hand
Gripping one hand with the other while tensing both arms and raising the elbows slightly
If you are prone to fainting:

Get up slowly and carefully from lying down. Start by sitting up. Don't ever jump to a standing position.
Ask your doctor if you should be on a high-salt diet.
Drink lots of fluids

Anon, even though you drink fluids and are healthy, you really do need to see a doctor. Especially since this is happening so many times per week. Do you and your parents have problems with trusting each other? Regardless, talk to them again as you should be seen by a medical professional.

Let us know how it goes and good luck.


June 16, 2015 - 4:49am
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