Hi monkey, I suffer from ULcerative Colitis and IBS and mine started after a trip to Mexico in 1988 and the doctor I had told me nothing was wrong with me years later the IBS turned into a major flare of UC. I guess years of diahrea can do some damage to the intestine. But after years of reading and dealing with this I found that you need to replenish your colon with probiotics that are lost with diahrea. They have helped me to have formed stools and no more diahrea. You might not see any improvements for a couple of weeks but stick with it. If you read through the threads you will see that probiotics have helped others as well.