Good afternoon, I have been experiencing a burning sensation in my tongue for a year now, as if I drank boiling water. I also have pain behind the breastbone, occasionally a temperature of 37.0°C, and weakness. I've taken numerous tests, which showed slightly elevated GGT, small gallstones up to 0.7mm, normal thyroid function, and had an endoscopy that diagnosed reflux esophagitis. I completed a treatment course prescribed by a gastroenterologist with no results, then consulted a neurologist who also prescribed treatment, all without success. I'm at a loss and don't know where to turn next. Perhaps someone can advise what to do with this unclear illness!!!!