Since This Past May, Off And On, But Just This

Since this past may, off and on, but just this month every time I eat anything, whether it is oatmeal, salad, quiche, two bites of a sandwich, a few sips of peppermint tea, I get extremely sick to my stomach and the pain level shoots off the charts. I would like to vomit to relieve the pain but in 2009 I had gastric bypass and so I cant vomit. I have had my gall bladder removed, had 2 CT Scans that are negative and now the bariatric surgeon wants to do exploratory surgery and remove my appendix. There is no issue with my appendix, it would simply be preventative.