Ugh, that's no good. I say that I have a 'bad stomach' and can definitely have tummy issues that throw me to the bathroom with cramping and loose stools BUT it's not all the time. Is this all the time? Any dietary changes or issues related to WHAT you eat? (as in, do you see any difference in this based on what meal you've had?)? I and in fact, my husband and one of my sons had chronic diarrhea and the doctor ordered for all three of us a stool test. We went at home and packaged it, they then sent it to the lab. Surprise, all three of us had a parasite. And then we found out that about 70 people at a party we had gone to on a friend's farm also had the parasite (giardia). We all got it from a huge fruit salad washed in contaminated water. Awesome, right? Anyway, my point of telling you that was that doctors will probably want to get a stool sample from you test it. Other things that can cause this are medications you might be taking, ulcerative colitis, chrohn's disease, celiac disease, chronic pancreatitis, lactose intolerance, malabsorption of nutrients, and IBS. You need to be examined by a doctor to find the cause especially after this long. It could have an easy solution. For our ongoing issue, we took an antibiotic for a week. All better. So, see a doctor as soon as possible to get the bottom of what is going on!