Hello! Three nights ago I was a bit wobbly when I got up in the middle of the night to go to the bathroom. Odd, but it ended quickly. Yesterday, I finished my exercises and when I went to get up, I was a bit dizzy. Just now, I finished my crunches and stretching, went to get up and I was dizzy again. I felt very warm, had a bit of a burning sensation in the center of my abdomen. I sat down for a moment and I'm ok. I have a hint of a headache ate the moment -- but not serious. While on vacation last week I got what I think is a spider bite on the left arm. It had a slight bump and itched. A small amount of clearer fluid came out when I applied a bit of pressure. Don't know if the two are related. Why am I getting dizzy?