I am having problems with gastritis and a high level of gastrin, which is roughly 620 pg. The doctor's have done a CT Scan looking for the Ellison Zollinger syndrome. The CT Scan with and without contrast showed no abnormralities in the pancrease or duodenum. All organs are normal. My doctor doesn't know why the hormone gastrin is high. He has done all the test he knows to do and doesn't have a clue. Can anyone help me to know what is going on? I have been taking prevacid for roughly 4 years and just switched to Kapedix. I am thinking this may have something to do with the high levels of gastrin. When the doctor adminstered the blood test, I was not fasting nor was I taken off from Kapedix. Would this contribute to the high level of gastrin? Please help, I am at my wit's end. My stomach hurts due to the inflammation, gastritis. I fill bloated like I have a full stomach.