| | Conditions Treatments | Irritable Bowel Syndrome Ive had diarrhea for 3 weeks now what is it? I am not a medical expert and cannot give medical advice. If you have diarrhea that has persisted for 3 weeks, you should consult a doctor immediately. Irritable Bowel Syndrome - Related Articles What is the icd-9 for code hip revision? Chinese Herbs for Kidneys The Effects of Welding Smoke Why do your cheeks sometimes go red and burn? The History of Knee Replacements What effect would an increase in co2 have on respiratory rate? Storage Instructions for Oxycodone