Fainting or cognitive issues

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New Member

Date Joined Nov 2009
Total Posts : 8
   Posted 1/28/2014 8:40 PM (GMT -6)   
Has anyone here fainted or had cognitive issues from being oxygen deprived?

I have had cognitive issues for many years and today I fainted briefly. I don't know how to explain it that well.

My Dr. said that my deep breathing was measured at 44% the other day. Could this reading reflect what is happening with me?

Any input is appreciated.


Elite Member

Date Joined Apr 2007
Total Posts : 32602
   Posted 1/29/2014 10:52 AM (GMT -6)   
Many different conditions can cause fainting. These include heart problems such as irregular heart beats, seizures, panic or anxiety attacks, low blood sugar (hypoglycemia), anemia (a deficiency in healthy oxygen carrying cells), and problems with how the nervous system (the body's system of nerves) regulates blood pressure. Some types of fainting seem to run in families. I have fainted from dehydration.
A simple episode, also called a vasovagal attack or neurally-mediated syncope, is the most common type of fainting spell. It is most common in children and young adults. A vasovagal attack happens because blood pressure drops, reducing circulation to the brain and causing loss of consciousness. Typically an attack occurs while standing and is frequently preceded by a sensation of warmth, nausea, lightheadedness and visual "grayout."
If you have fainted you should call your Dr. for his input. 
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New Member

Date Joined Nov 2009
Total Posts : 8
   Posted 1/29/2014 6:29 PM (GMT -6)   

Thanks for your response.

I did manage to get in the walk in clinic to report that I fainted, and I will see my allergist about it in two weeks (he is the best doctor I have had regarding my asthma). Now that I think about it, what happened may have to do with my rbc, hemaglobin, and hematocrit being elevated.

I also have EDS 3 (hyper-mobility), but was negative for POTS. I think that is similar to what you were talking about, "graying out" and the "warm feeling", etc. It definitely wasn't like that.

I appreciate your help!

Many thanks.
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