Hi. Thanks for your query. Noted the history and understood your concerns. Fistulectomy operation per say may not be related to the feeling of strange kind in liver that you are not able to eat anything because it seems something is going on in the liver. It may be possibly problem with liver, gall bladder or stomach like gastritis or so. This can be diagnosed by the following ways: Clinical evaluation by your Surgeon. Ultrasonography of the abdomen. Upper GI Endoscopy for esophagus, stomach and duodenum problems. Once a proper diagnosis is done, you can have better chances of getting a proper management and cure. Get the proper foods and beverages as you have to stop the ones that instigate or enhance the problems.