I had chronic dizziness for a year and saw soo many doctors that said it couldn't be the Metformin, but then I decided to quit taking it on my own and wha la! No dizziness after that again. Now I am put back on it for 2 weeks starting yesterday and the dizziness came back last night. Does anyone else have this? I can handle nausea and bathroom problems but every time I close my eyes at night to sleep, my head starts spinning.