I have not been checked for an ulcer. Avoiding nuts and eggs have kept the pain away. I do still have my appendix. I was able to sleep the pain off last night and I'll call my doctor today to set up an appointment. It has to be an allergy of some sort. I can feel the nausea in my mouth as well. My at home test says I am moderatly sensitive to apples but I don't have an issue with them but I just eat apple sauce so I'm not sure that would be totally the same thing.