Acute dysfunctional dyspepsia

From Memory Alpha, the free Star Trek reference.

Acute dysfunctional dyspepsia is better known as heartburn.

In 2374, several of the crewmembers of the USS Voyager developed acute dysfunctional dyspepsia after eating Neelix's version of Rodeo Red's Red-Hot, Rootin'-Tootin' Chili in the mess hall. Lieutenant Tom Paris diagnosed it after several crewmembers complained of chest pain, and he replicated antacid to relieve their pain. (VOY: "Message in a Bottle")