for the past couple of weeks I've experienced changes in bowel movements. I'm typically regular every morning. I've had diarrhea, days where I couldn't go, then a loose stool feeling as though i'm not completely evacuating. Before I do have to go, sometimes there is cramping prior to, during and shortly after. Sometimes to the point it's difficult to leave the toilet. I've been taking a probiotic almost everyday. There are times where the stool is slightly firmer, but seems to regress back. I was in Mexico 4/25 thru 5/1. Everything was normal while I was there, this started a day or so after I returned.I'm 51, in my colonoscopy, they did find some diverticulosis.