Welcome to the forum!
These can be symptoms of pancreatitis
. This is easy to diagnose by testing
the levels of amylase and lipase, digestive enzymes formed in the pancreas. Changes may also be seen in levels of glucose, sodium, potassium, calcium, magnesium, and bicarbonate.
However these symptoms can also be seen in gall stones, hepatitis, duodenal ulcer, gastric reflux and cancers of the stomach. I think you should discuss these possibilities with your doctor.