Hello,
I was wondering what this could be. Every now and then -- about 2-3 times per month on average for the past 3 months I experience very sudden dizziness that lasts about 15 seconds or so. It is so badwhen it happens that I can't get my bearings at all. If it happened while driving I do not believe I could pull over. It is that disorienting. It clears up after 15 secs or so and I am left with a sort of dull pressure in the back of my head -- not pain or even that disrupting but its there for maybe 1/2 hr or so. I also feel slightly off balance for the next hour or so. I can not atrribute this to not eating, drinking, lack of sleep, low or high blood pressure or any of the obvious. I am very concerned it some sort of seizure or brain tumor or something. Any ideas on what this could be. I am going to get an MRI to rule out my fears.