Symptoms may include:

• Nausea
• Vomiting
• Abdominal pain
• Diarrhea
• Weight loss
• Loss of appetite
• Bloating and burping

Common symptoms and their severity as reported by people on Patientslikeme.

• This condition can be caused by tumors called gastrinomas found often on the head of the pancreas and upper small intestines. These gastrinomas secrete a hormone called gastrin.
• High levels of gastrin cause production of excess stomach acid, which leads to peptic ulcer.
• The risk factors include:
• Family history - this is likely run in families