Many congenital brain defects cause minor neurological impairment. People with these types of congenital brain defects can grow to function independently. Other defects are so severe that they are fatal before or shortly after birth. Some cause significant disabilities.
I am looking into this for a friend as well. The pancreas deals with digestive juices and insulin. Have a look at your medications to see if they may have gastrointestinal effects. I can tell you that Tramadol does affect the production of enzymes in the intestine.
In rare cases, gallstones can cause pancreatitis, an inflammation of the pancreas. Gallstones back up the flow of digestive enzymes made by the pancreas. Pancreatitis may cause sudden, severe abdominal pain, loss of appetite, nausea and vomiting, and fever.