The next thing that I bet MANY people in this forum have and don't even know it is:
Benign paroxysmal positional vertigo (BPPV)
If you get dizzy (also spinning or balance problems) when rolling on the mat, flipping doing cart wheels, quick or even slow head movements. But are ok when still it's most likely the easily FIXABLE (BPPV) 80% Success Rate even doing this at home!
Symptoms:
dizziness
lightheadedness
unsteadiness
loss of balance
vertigo (sense of world spinning or moving)
blurred vision can accompany vertigo
nystagmus (eyes rotate toward affected ear)
light sensitivity
nausea (can be constant)
vomiting
You can develop this simply by a slap to the head, getting hit in the head, concussions and even aging can cause it. It's usually fixable and is know as Ear Rocks!
Quote: "Tiny 'Ear Rocks' Keep Us Balanced
Within the inner ear, there's a little pouch called the utricle that contains about 1,000 little pebbles made of calcium carbonate.
The tiny rocks serve an important purpose: They stimulate nerve cells when we move our heads — and send signals to our brain that guide our sense of up and down.
"The trouble is that sometimes the little rocks fall off," explains Dr. Timothy Hain, a dizziness expert at Northwestern University. When the rocks fall into one of the inner ear canals, the brain gets confused. As the rocks roll around in the canal, the brain senses that the head is moving a lot more than it actually is. The result: vertigo."
The Problem and the Fix:
http://www.med.unc.edu/ent/adunka/symptoms-disorders/benign-paroxysmal-positional-vertigo-bppv
And Here:
http://www.ut-ent.net/2459/home-epley-maneuver/
And Here:
http://news.health.com/2012/07/23/youtube-vertigo-treatments/