First and foremost you need to see a gastroenterologist for any tests to eliminate other causes than IBS. I am a 50 year sufferer of IBS, I had all the tests, tried everything they recommended, and nothing helped. At 50 years old I started taking Pearls High Potency Probiotics and eating one container of Activia reduced calorie vanilla yogurt a day (they recommend 2 day) By the second month my symptoms, for the first time in my life, happed half as often. HALF AS OFTEN. That was huge ! By the 4th month I was symptom free. Yes, completely symptom free !!!! I have been symptom free for 2 years now. I have suffered from birth, (unable to drink milk or formula,) suffered for 50 years, I now tell everyone I can, you've tried everything else, just try these 2 products together and see if you notice a difference. I'm shaking my head that I suffered my whole life and all it took to eliminate my symptoms was Pearls High Potency Probiotics and Activia Yogurt. Give it time to work, like I said it was the second month before I started to notice a change, and I hope it helps you as much as it has helped me.