I have watery loose stools for over a month now. Could I have pancreatic tumor? I had a colonoscopy 2 years ago and was normal. I am 27.

Probably not. Pancreatic disorders may cause loose stool. They are not the most common cause. In the office, I would suggest a probiotic or yogurt daily as well as citrucel daily. You may also have a food allergy or sensitivity, consider keeping a food diary to track triggers. Medications frequently cause diarrhea- not sure you take any. Stool evaluation at your doctor's office may also help.