Pain in duodenal area (slightly right from the middle of upper stomach) is mostly from duodenal ulcer. Avoid anything acidic: fruits, fruit juices, vitamin C, aspirin (!!), vinegar, wine, also spices, alcohol, caffeine. Some say, that black tea helps in pain.Have frequent small portions, when you eat.
If it really is ulcer, it can be diagnosed only with gastroduodenoscopy, and then treated with appropriate drugs.
I'm in the same boat! Let me know if you find anything out!!! I would appreciate anyone telling me what is going on, and something to take the pain away FOR GOOD!