(I was scrolling down to the R's and saw mention of dizziness)
To those who can't find a inner ear problem or any other reason for their dizziness, has anyone checked your cerebral blood flow? When we stand gravity naturally pulls our blood downwards, usually the body can compensate. Sometimes, if you get up too quickly for example, you'll get lightheaded or dizzy - maybe because of blood pressure dropping and/or just decreased blood flow to the brain.
It results in symptoms of dizziness, lightheadedness, ringing ears, blurred vision or black/grey/white outs, falling or complete fainting.
Just a bit of information if anyone feels lost/confused or like their doctors aren't listening.