thanks all..

just so you know, i'm in decent condition.. i exercise regularly..

tonight i didn't have much time, but i ran 2 miles in a little under 15 min.. my breathing was fine i definitely would've been able to keep the pace for a bit longer, but i cramped up BAD in my abdominal area.. on both sides, and it's nearly impossible to work through.. what is that due to? not enough water? too much water?.. any way to prevent that, besides stretching the area?