Cramps. Yuck.

Have you got a heating pad? If you don't, try getting something warm (like microwaving a towel) and put it on your lower abdomen. That can help. Or sitting in a warm bath. Have you got any Tylenol, Advil or Motrin ... anything that's a pain reliever drug?

If you can, try sitting or lying down in a comfortable position.

If you can take more naps... that helps too... can't feel cramps if you're not awake!

My sincere sympathies... cramps suck SO bad. If you're prone to bad cramps though... perhaps talking to your doctor would be a good thing.