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For 2 years now ive had awful stomach discomfort. Can range from acidy to pressury to just icky and gross. My mouth often tastes bitter or sour or sometimes like garbage. I have a hard time swallowing sometimes and also have constipation. The stomach discomfort is constant 24/7. Ive had an endoscopy and 2 emptying tests which were normal and a sibo test which came back methane positive. My dr thinks i have functional dyspepsia but i think its gastroparesis. Lmk what you think.