I felt as though it weresome type of virus to begin wiht.This was back last Nov. 06. Started out as diarreah then cramping. THen costipation, with the gas and air. I also fel hungry, but felt if i ate anything I'd cramp up and have the stabbling pains in my stomach (different areas). Thsi was caused by an infalmmation form gastritis. I'd try to activia for one week, the if things are NOT better, go on to a physican, it takes forever to get na appointment is why I said go ahread and make on.e If you are better you can always cancel it. I also was put ona GERD diet. No fired stuff or fatts foods. Have given up coffee and certain chocolates, tuna, things i really know will kick my ass with indigestion. HAve ben on prevacid, protonic, prilosec and Zantac and numerous generic things to no avail. Have a presc. for the NExium in hte mail on its way. Sure hope this fixes the problem! LIke I stated, you could have somehting entirely different, but i would not wait too long, mine has been ongoing back and forth to same gastro, endoscopy and colonoscopy since last Nov!