When I took Creon, the 1st couple of days, I felt great. I could digest everything! About the 4th day I started having pain on my left side, underneath my rib cage, the 5th day the pain was intolerable, I coud not stand up strait, even breathing was difficult, I had a bloody stool, not diarrhea, but blood all around it (I still keep a photo). I have to say that my doctor started me with a high dose, which was a mistake.

As soon as I quit Creon, I started feeling better, the pain was less and about the 3rd day symtoms had almost dissapeard.

The pancreatic enzymes are great, with the help of another gastroenterologist, I have manage to calculate the right dosage and make changes if I eat out, or if I have a latter dinner or eat more than what I normally eat.

I hope this is helpful

Mercedes