Instability

I've been following my diet well and drinking plenty of water and yet, I'm still having problems. I have had some brief episodes of motion sensitivity the last few weeks; mostly just a fleeting feeling of dizziness when I would change position. I always recovered in an instant. My tinnitus has been worse recently too; loud and high pitched. Today, I had a sudden onset of dizziness after turning my head. It lasted more than an instant and in fact, progressed to nausea. I sat at my desk for a few minutes but it wasn't passing so I took some meclizine. The med knocked me out for 30 minutes. My first ENT appt isn't for another two weeks. I hope I'm not losing ground w my hearing and vertigo.