Standing up can cause a sudden loss of blood pressure in your brain. This is especially true if you have been sitting in such a way as to partially cut off the blood supply to your legs. The blood rushing back to the deprived area causes the drop in blood pressure.
If this happens often, you may be suffering from hypotension (low blood pressure) and might want to consult your doctor. Hypotension can lead to fainting episodes, among other problems.
This can be caused by high blood pressure.
The lack of blood flowing to your brain.
The most common reason that some people get dizzy after a massage has to do with the transition from being relaxed and lying down and then change to a vertical position standing up too fast. If you ever laid out in the sun and then stood up too quickly that you experienced a slight dizzy feeling, then you have experienced the same thing. A good massage will relax you, and then if the massage therapist does not get you up slowly, you may experience dizziness of even fainting.
feeling faint and lightheaded are common in pregnancy; and are usually from low bloodsugar. try to refrain from standing up too fast, turning around too fast or exercising before eating.
If you have been lying down for a while or slouching, blood will start to stay around your brain. When you stand up all the blood flows back into the circulatory system which causes the dizzy feeling you get.
You can get dizzy from not eating , getting up to fast, or even a lot of other reasons. I would ask a Doctor or at least go see a Doctor.
Here's the the full question( had to make it smaller) rarely ill get this flash or even when you stand up to fast and get dizzy/light headed and about to pass out feeling in my head then what ever I was looking at i remember the image perfectly for ever.. I remember my 2 birthday..
This could be meningacocal or cancer
You were dizzy from standing up to fast. Don't do that.
Getting up too quickly. Not drinking enough water. And cut the salt.
You are drunk and your eyes are closed. Actually it would be better to ask your doctor than a website.
Try to rest and drink water :)