I'm a fairly new diver, and have had this strange dizzy spell hit me during two separate dives now. It's hard to describe, but basically my sight gets almost blurry and my view is contorted, for maybe 10 to 20 seconds (but it feels like much longer!) and is very unpleasant. It affects my vision so that things almost look like it would if you weren't wearing a mask..it's just odd and rather scary actually. My buddy (a seasoned diver) said it was probably something to do with my inner ear and blockage issues. I do have to clear my ears fairly regularly by plugging my nose and blowing against it. It wears off on its own, usually with me just remaining still and forcing myself to be calm. It typically happens mid/late-dive, and occurs in a split second. Any ideas what this is about? Have you had this happen yourself?