Weird thing happened today. I had just finished 30min on the elliptical and had gone through 2 ab machines, a triceps machine and was at the rowing machine. I did two sets there and started feeling a bit nauseous so I stopped. I waited a bit to see if it would go away but it didn't. I decided it was best to cut my routine short and go sit down and wait for my wife to finish her workout I walked over and told her I was going to sit down. We talked for about a minute. As I was walking over to a chair I started feeling light headed. I sat down and stayed there for about another minute or two - still starting to feel worse. I the decided it would probably be best if I lay down. I found a spot and lay there for a couple more minutes until I felt fine. I got up to go to where my wife was sitting - maybe 30 feet away. By the time I got there I was feeling really light headed. (It wasn't a 'stood up to quickly thing either) I got there and told her I needed to go lay down again as things were getting really fuzzy really quickly. She told me I was pale and looked slightly green. At this point I, apparently, started swaying and wobbily made my way back to where I had been laying. I don't remember that or banging my shin on an obstacle. Actually I dont remember much of that time period at all. I lay there for 3 minutes and then felt completely fine. No further issues I can't quite figure out why this happened. If it was right after a set I could understand it. But, after feeling a bit nauseous I stopped, felt no light headedness until 3-5 minutes later. Laid down for a couple of minutes and then felt fine. Got up and it got sooo much worse. A couple of possible relevant items: -I didn't eat breakfast. I've gone to the gym countless times before without eating breakfast but that could be a factor -Being on the elliptical for 30 minutes makes my feet feel a little numb. Not the first time this has happened either but could be a factor Any thoughts?