Does anyone here ever have vertigo & off balance? I have episodes where I almost fall & can't move or walk without holding onto something. It lasts for hours & I'm very tired. My eyes won't focus & I feel if I move them I will completely lose my sight. I feel as if my optic nerves are in spasm. It's a cross between a migraine & Meniere's attack which I also have. I want to be sure it's not related to seizure activity. Thanks.