I have had the exact same experience twice this week. Both after strenuous walks. My vision was so blurred I could barely see. Like lots of white lights. And the first time I almost passed out. I have HBP and thought it might be a dip in the pressure because I had started exercising and might not need the same dosage of medication. Now, I am not sure. A headache followed both occurences.
I too experience this phenomenon, I have had it happen to me in high school up to my current age which is 25. Usually after intense exercise is when it occurs, I do not believe it can be related to the foods that are eaten as I am on a very strict diet and I drink about a gallon of water or more a day. I have come to think that the issue could be related to blood pressure or a malformed vein or artery in the head or neck. One other possibility is light sensitivity runs in my family and I experience it occassionally, I have wondered if this could be one of the causes as well.
If anyone has found a cure or found exactly what causes this please let me know and if I find out anymore I will post it here as well.
Mori I too have same exact feeling like what you are experiencing after exercise.. that is the reason I stopped exercising.
I recently found some ppl who complaint about this as well..I will link them here.
at least we're not alone. LOL
keep in touch if you find anything. thanks
Thanks for all of the help!
I am not aboslutely sure yet if this is the answer, but it sounds like exactly what I have...
http://www.migraine-aura.org/content/e27891/index_en.html
Find a new doctor and get a second opinion.
If they give you the same answer get them to explain exactly how not enough water can cause your symptoms.