My daughter who is 15 began having fainting spells about 7 months ago. We visited many doctors including experts in neurology and caridology. We tried many tests including blood work, eeg, ekg, holster monitor, tilt table, and epilepsy monitoring. We tried many medicines, some with some very bad side effects.
We recently visited a chiropractor. He did an x-ray and found that C1 & C2 vertebrae were out of alignment. He adjusted her using a Proadjuster. After 2 visits she went from having 3 to 5 episodes per day down to less then one per week. It has only been 3 weeks but she is still undergoing adjustments twice per week. She has made tremendous progress. She is now the starting point gaurd on the varsity basketball team and is very active in church. It is a miracle.
We have lived through the diagnosis of POTs, dysautonomia, and vasovagal syncope. We were told you typically only treated the symptoms and avoided the triggers.
I am not a doctor, but it makes sense that if C1 or C2 vertebrae is putting pressure on the vasovagal nerve that it will cause dysautonomic symptoms. I recommend that you perform an x-ray to determine if you have a similar issue.