I was cutting hair in a barber shop 15 years ago, and suddenly felt like I was going to faint. I staggered, and had to go sit down. I've been dizzy off and on ever since. I had all kinds of tests, and finally went to a neurologist. After MRI's, EEG's, spinal taps, etc., he told me it was "probable" that I had MS. (Multiple Sclerosis). As scary as that sounds, it was better than some of the other "options" like brain or eye tumors, or spinal tumors.