I am a 43 yr old female who for the most part is healthy. I am 5'0 and i weigh about 100 lbs. I do smoke cigarettes and have for many years, but I consider my smoking to be minimal as apposed to the norm. It generally takes me about 3 days to go through a pack. I also have hep C, which is also on the low end, I am in stage 1 and would have about an 85% chance of beating this disease if I did interferon as treatment. Lately I have been suffering from onsets of excessive sweating,spinning sensation/dizziness, I literally feel like one eye is swirling around and around while the other eye is moving in pages unable to focus. Along with this is nausea but never to the point of throwing up. This will last for about 10-20 minutes and these episodes happen at least 1 per month. I do have to include that when I was in my 20's I had endocarditis but since then my heart has been strong. I don't drink enough water so I thought that it may be dehydration with lack of sleep, I am a busy mother of 2. I know this is a lot of info but I suppose that is why I am asking because it could be a whole slew of things. Any guesses?