Ocult blood may be due to diverticulum in the colon
which is not related with pancreatitis
which is a different problem.
If bleeding is too much and is reducing your hemoglobin
level then surgrical resection of diverticula is required
chronic pancreatitis can be auto-immune or from some virus which can be differinciated by blood tests however there is no definitive treatment of that supportive and preventive care is avaliable
You should keep in touch of a gasteroenterologist for all these issues and perticularly for bleeding.
Periodic screening for malignent transformation of colon pathology is required (which you are already doing)