Suggest Treatment For Diarrhea And Abdominal Pain

Question: I have diarrhea almost every day. My stools are very thin even when somewhat formed. I have a lot of liquid stools with slime. Sometimes they are dark green and sometimes a golden brown color. I am bloated all the time and have non-specific abdominal pain, mostly on the left upper side. I have the odor of blood in my stool frequently but I don't see any blood. What is going on?

I am scheduled for a colonoscopy in 3 weeks. My last one was three years ago. There were no abnormal findings at that time other than some internal hemorrhoids. I was diagnosed with GERD and IBS. I had a recent Cologuard screening that came back positive for abnormal cells. That's when I was set up for a colonoscopy. I have not changed any medications in the last three years and the Dr. does not feel they are a contributing factor. I had an ultrasound due to elevated liver enzymes last month which only shows a fatty liver of unknown cause as I stated before. I have at least one watery stool daily sometimes several. I very seldom have any formed stool and when I do it is very thin and narrow. As I stated I have left upper abdominal pain that radiates through to my ribs in back. The pain is there almost all the time now. I am nauseated almost all the time and sometimes a little short of breath with the pain.