Did I read your gastrin was 996? Mine was 2000 and I stayed on my gerd medicine it can affect the level some however when it’s that high it’s negligible you should also have a gastroenterologist to help manage it. You sound a lot like me grade 2 stage 4 do you belch a lot? Let me know what you find out as I have been trying to find someone that can relate to what I am going through