I am new to this site. I think it's great. I have had IBS for 14 years, but have gotten increasingly worse over the last couple years. Especially with gas and bloating. I have been taking a liquid acidophilus called bio-k for over a year. It took about 3 months before I started to get rid of a lot of the upper gas. I believe that I need to take a probiotic that has both acidophilus & bifidus. I have tried several different kinds, but the side effects have been so bad, I had to discontinue (I also have a system yeast problem, and probably the worst case of IBS ever diagnosed - everything makes me sick). I have now found a probiotic called SISU that I may be able to tolerate. However, I have so far had a couple better days, but am feeling bad again. I was wondering if there is anyone else out there who has had similar experiences, and can hopefully tell me that if I stick it out, I will get better. Thanks.