I have been to several doctors...Have had mushy,smelly,clay,rust colored stool for 6 months. Have terrible back pain. Sometimes can't walk! I am going for another blood test for celiac and whatever. And the dr. wants me to have a ct scan of pelvic and abdominal. Had partial hysterectomy in 07. What are your thoughts..Help! JCould it be kidney, panreatis,gallbladder?