Fainting while lifting weights

[jester710]

This same thing happened to me, although it only happened one time (although I fainted twice). I felt woozy while lifting weights, and passed out afterwards. I was out for 15-20 seconds each time. I went to the doc, they ran an EKG and took blood, all that good stuff. They were unable to find what was wrong with me, but they said that fainting is usually a sign of heart problems. Make sure they check your heart, as well as check for anemia, diabetes, etc.