I've had it now for nearly a year, but it's always been pretty mild. This morning it took a turn for the worse. I bent over the dryer and I had to hang on because everything was spinning violently. I could barely make it back to bed and thought I was gonna throw up (something I've only done once in 27 years). I couldn't go to work, and I'm up now, but the spinning and eye disturbanced are still occurring. This is a condition where nothing can be done, it runs its course and sometimes never goes away and can be quite disabling.. Nothing I can't deal with.