I Have Had My Gallbladder Removed 3 Years Ago My

I have had my gallbladder removed 3 years ago my diet has not had any significant changes, I avoid greasy or spicy foods and stay within my physicians guidelines. I do not drink alcohol and i am taking cymbalta and xanax, for the past year and half I have had occasional loose bright yellow diarrhea with large runny mucus more and more now for the past three months. ? possibilities please.