Dr. Kaur has hit the nail on the head, as usual.
My guess is that you have an intermittant blockage of a blood vessel. When you get the MRA the vessels are not in spasm and the scan comes out normally. As Dr, Kaur stated this is sometimes called a "vasovagal attack". Hypoglycemia doesn't usually come and go. Cutting to the chase, there is some factor that is predisposing the blood vessels to suddenly contract, and that has increased their sensitivity to such contraction. Genetically, some people have a super-sensitive vagal system.
The mechanism of contraction involves calcium and Vitamin D, and both should be looked at.
Ideally, you would be having an MRA while an episode was taking place.
What nyou might think about is asking your physician to supply you with sub-lingual nitroglygerine, and see if taking this at the start of an attack, ends the episode. Nitroglycerine is a systemic vasodilator, and increases body capacitance.
I do not believe this is a dissassociateive disorder.
Thank you. I have two referrals out right now that I am waiting on. One is a cardiac and the other is for another cat scan i think. I have to move at the VA hospital speed so it can take a little time.
Hello,
For syncope/fainting to occur, either the reticular activating system in the brain needs to lose its blood supply, or both hemispheres of the brain need to be deprived of blood, oxygen, or glucose. Since most of the causes have been ruled out, it can be due to blockage of arteries supplying blood to the brain esp. the carotids or vasovagal attacks. Other than that, Hypotension, Anemia, Dehydration and Hypoglycemia also need to be ruled out. Fibromyalgia does not cause syncope attacks.
It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided. For exact diagnosis, you are requested to consult your doctor. I sincerely hope that helps. Take care and please do keep me posted on how you are doing.