I am a near 8 year pancreatic survivor.
Pains I was having, seemed like my liver was cramping, caused me to think cirrhosis or gall stones. My main symptom was mostly painless jaundice. My liver numbers were elevated because the tumor I was developing pressed against the bile duct, causing the jaundice and the other effects thereof.
The pain you describe reads like descriptions I have seen of pancreatitis pain. Chronic, acute pancreatitis MAY lead to pancreatic cancer.
Best thing to do is get a complete work up by your primary care doctor, which is what I did. 7 1/2 weeks after that 1st visit, had a diagnosis of a well defined Stage IB adenocarcinoma, which was confined to the head of the pancreas. I qualified for surgery without needing chemo or radiation before. I did get chemo after as the tumor had gone from Stage IB to Stage IIB in the 19 days between diagnosis and surgery. Still here, still clear.