Stomach cramps are extremely painful, but it's possible to relieve them by treating the underlying cause, which you may even be able to do at home. Possible causes of stomach cramps can come from your digestive organs, aorta, appendix, kidneys, gallbladder, or spleen. They can also originate from an infection elsewhere in your body. Cramps are commonplace for some women during their menstrual cycle, although exercises can often alleviate such pain. The strength of pain does not always necessarily indicate seriousness: very painful cramps can be caused by gas passing through your digestive system harmlessly, whereas life-threatening conditions such as colon cancer and early appendicitis can produce mild or even no pain.

Herbal Remedies
Chamomile:
There is some evidence that shows chamomile in combination with other herbs may be good for an upset stomach. Do not use chamomile if you take anticoagulants, as it interferes with these medications.

Peppermint Oil:
Enteric coated peppermint oil capsules can be used for irritable bowel syndrome. There are some studies that peppermint oil with caraway oil can also help with indigestion.

Deglycyrrhizinated licorice (DGL):
Licorice root, in preliminary studies, has been shown to help with digestion and heartburn. It can, however, cause an increase in blood pressure.

Make lifestyle changes
-- Drinking more water and less carbonated or fizzy drinks
-- Avoiding vegetables that cause more gas, such as legumes, broccoli, and cabbage
-- Avoiding high-fat foods
-- Eating slower to avoid swallowing air