What exactly causes "vageling" and how do I get it fixed?

Question

This used to happen several times a day, now it's only every few days, very sporadic. I cough really hard, things blur, I pass out. I, of course, can't really see it, but I'm told my face turns bright red, my hands clutch and it seems like a siezure. I've seen several doctors, had x-rays - all a long time ago when it started, but it's recently started again.

Answer 1

Activation of the vagus nerve typically leads to a reduction in heart rate, blood pressure, or both. This occurs commonly in the setting of gastrointestinal illness such as viral gastroenteritis or acute cholecystitis, or in response to other stimuli, including carotid sinus massage, Valsalva maneuver, or pain from any cause, particularly having blood drawn. When the circulatory changes are great enough, vasovagal syncope results. Relative dehydration tends to amplify these responses.

Excessive activation of the vagal nerve during emotional stress, which is a parasympathetic overcompensation of a strong sympathetic nervous system response associated with stress, can also cause vasovagal syncope because of a sudden drop in blood pressure and heart rate. Vasovagal syncope affects young children and women more often. It can also lead to temporary loss of bladder control under moments of extreme fear.

Answer 2

Coughing stimulates the Vagus nerve, which lowers your heart rate...causing less blood to flow to vital organs...like your brain. That's why you pass out.

Do you have a heart defect of any kind??