You had suffered Pancreatitis
following which you have developed Diabetes
Recurrent chronic abdominal pain
is a common occurrence in pancreatitis.
This is due to the chronic inflammation and infection to the pancreas.
The CT and MRI are normal. So the pain may be likely from other sources.
Acid peptic disease
may cause the pain.
You may undergo and endoscopic examination for assessment for the cause of the pain.