Hi. Thanks for your query. It is good that you know these are non-menstrual cramps. The most probable reason can be IBS, meaning Irritable Bowel Syndrome. You may get them whenever you are n stress or have taken some foods or beverages which can instigate this problem. Do you get other associated symptoms like bloating, loose motions or so ? Another possibility is that you may have a lesion in the transverse colon. I would advise you to go for the following investigation when you are suffering from cramps :: *X-ray of the abdomen n the standing position * Ultrasonography * Colonoscopy * CT scan to confirm the diagnosis. The treatment will depend upon the findings. If all the tests are negative you may go ahead with the Surgical exploration - Laparoscopy now a days.