what vein causes blackout spells?

Question

I have been blacking out since 15 years of age. followed by left eye pain. I blackout and stop breathing some times. I was told that it was caused by stress and a vein connecting the brain and the spinal cord. the name of the vein starts with a V that's all I know. can you help me?

I get really weak, I start to drift away not responding at all. then I black out and i'll be out maybe 2 minutes. When I come to I have left eye pain like someone is just trying to push it out from the inside. along with a really bad head ache.

Answer 1

What are the causes and risks of the condition?
The cause of fainting may be minor or it may be life-threatening. Often, no cause can be found. The following diseases and conditions may cause fainting:

anemia, or a low red blood cell count
arrhythmias, or irregular heartbeats
carotid stenosis, which is narrowing of the arteries supplying the brain
congestive heart failure, a condition in which a weakened heart fails to pump enough blood to body organs
hypoglycemia, which is a low blood sugar that occurs most often in people with diabetes
low oxygen in the blood from any cause
orthostatic hypotension, or low blood pressure that is caused by standing up too quickly
pulmonary embolus, which is a blood clot in the arteries supplying the lungs

Additional factors that can cause fainting are as follows:

dehydration
extreme fatigue
low blood pressure as a side effect of medications for high blood pressure
marked fear
pain, such as an acute injury
prolonged or severe coughing
side effects of certain medications, such as sedatives
straining to urinate or have a bowel movement
stressful events

Answer 2

Does this ONLY happen when you are changing positions? For example, when you stand up from a seated or lying down position? And as soon as you stand, everything goes black for a second or two? That would be called benign positional hypotension, if everything else could be rules out medically. What BPH means is that it is benign (or not dangerous); that it's related to the change in your body's position; and hypotension means that your blood pressure drops to a level which it cannot recover from as quickly as your position changes. It can be related to other problems, so you *do* need to see a doctor, but, first things first, start getting up much more slowly. From bed, sit on the edge of the bed, then stand. If you are sitting, give yourself a few seconds before standing all the way up. IF it happens when you aren't changing positions, and you're NOT on meds to lower your blood pressure, or that have that possible effect, this could be a sign of sight problems or neurological problems, even heart issues.

Answer 3

well i don't no what its called but u need to see a doctor because it could be something that could kill u. i'm telling u this because my grandma died from an anruisam (its when a vien burst open) in the brain so anything that has to do with vien near the brain should be disscused with your doctor immeditly.

Answer 4

It's the Vagus nerve.

That nerve if it is compressed can cause you to blackout.