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Near fainting spells and other symptoms

Sunday, April 17th, 2011
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For awhile, I’ve been having this near fainting spells that come and go lasting a couple seconds at the most. This morning was the worst with my face feeling tingling, heart racing, feeling sick to my stomach and feeling tired after the episode.

Strange thing 99% of the time, it happens at work. My job requires me to stand most of my 8.5hr. shift. At home, for the most part, I spend a lot of time sitting around. My diet isn’t the healthiest, I like energy drinks and booze.

I was born with a heart murmur which required open heart surgery at a very young age. Im in my early 30’s now. Recently had a heart checkup but no EKG was done. No problems were found.


Answered by: Maria/ MD Health.com Forum Team

Fainting occurs when the blood supply to the brain is inadequate. There are many possible causes of fainting.
A drop in your blood pressure, for example, may cause one to faint. This may happen to patients suffering from postural hypotension, or low blood pressure that occurs when standing up too fast from sitting or lying down.
Normally, the heart rate and the blood vessels react to the drop in blood pressure. The heart beats faster in the attempt to increase blood supply to the brain. However, some health conditions may disturb the normal response of the heart and blood vessels to changes in oxygen level and this may cause fainting.

The most common cause of fainting is vasovagal syncope. This may happen when the part of the brain which plays a role in heart rate and blood pressure regulation overreacts to triggers. This causes the heart rate to decrease, and the blood vessel in the lower extremities to dilate and blood pools in the legs. This lowers the blood pressure. As a result, the blood flow to the brain decreases and this leads to loss of consciousness.

Heat exposure, emotional factors, and standing for long periods are among the common triggers for vasovagal syncope.

Other health conditions that may decrease the level of consciousness in anemia, low blood sugar, dehydration and seizures.

If you have a medical clinic in your workplace, I would suggest that you go there and talk to your company nurse or doctor about the symptoms that you have been experiencing. Fainting spells can significantly affect your daily activities. It’s important to identify what has been causing your symptoms. Physical examination and your health history will help determine possible causes.

If you have vasovagal syncope, your doctor can recommend ways to avoid the symptoms. Drugs that act constricts the blood vessels and some blood pressure drugs might help prevent vasovagal syncope episodes.

If seizures or other neurological problems are suspected. Your doctor may recommend further testing.

This blog entry is for your general information only. I recommend that you discuss your symptoms with your own health care provider.

References:
http://www.mayoclinic.com/health/vasovagal-syncope/DS00806
http://www.emedicinehealth.com/fainting/page2_em.htm


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