"Acid indigestion" refers to an uncomfortable feeling in your stomach, typically caused by too much acid. It can make your stomach feel painful, burning, or bring a sour taste in your mouth. Full definition
In this condition, excess stomach acid flows into the esophagus and it is also known as acid indigestion and heartburn. (selfcarer.com)
In fact, even today, chiltepíns are used — amazingly enough — as a treatment for acid indigestion. (fieryfoodscentral.com)
Believe me, I spent a long time looking for a creed that would ineluctably lead to a code that in turn would produce peace of mind, serenity of spirit, and dreamless sleeps followed by hearty breakfasts without a trace of acid indigestion later. (religion-online.org)