A_271 - What I call "gaslighting" is the phenomenon that involves the production of methane in the intestine during digestion, independent of the food ingested. It's a random phenomenon that occurs based on external events that indirectly affect that person (for example, interactions with websites or social media profiles). The opposite phenomenon is what causes us to burp (air escaping from the mouth). Both are digestive disorders almost always caused by external factors, although they can also be caused by swallowing air during a meal.