Whenever I run.?

Today after I ran a mile straight, which I haven't done in a while, my stomach hurt really bad. I was having pains similar to severe menstrual cramps, but I'm not on my period ?
Does anyone know why this happened and/or how I can fix it ?
thanks a lot!Whenever I run.?
The exact same thing happened to me a few days ago. The pains went away after I had some water and rested a bit, so I wouldn't worry about it. The more often you run though, the less it should happen I think though.
I think it's because you haven't gone running in a while. It happens to me too, sometimes. Unless it lasts all day, you are fine. If you want to fix it, just go running a short way each day, and work up to a mile.