Hi,
Welcome to JustAnswer!
Most of the symptoms you have mentioned indicate pancreatitis.
A CT scan of the abdomen and serum amylase/lipase test may be done for confirmation.
But bleeding per rectum is not a common feature of pancreatitis. You may need a colonoscopy for evaluation.
Doctor
MD, DM.
Your symptoms are nonspecific and it does not particularly denote cancer.
As I mentioned earlier, all the features taken together and your age keep cancer only a remote possibility.