I have had stomach cramping for three days now, i have had bm and gas but i can hardly walk. and it just comes and goes.

GI Issues: Bloating, gassy, crampy feeling in abdomen, ..Can all be symptoms of irritable bowel syndrome (ibs), but that is truly a diagnosis of exclusion. You should get checked out by a GI dr. To be sure. Stress and diet can play a role in ibs, so if stressed, try to decrease it and start watching trigger foods that may aggravate your symptoms. Best wishes.