GPT and gastroesophageal reflux disease: A female patient in her early 50s with a history of hiatus hernia, fibromyalgia, gastroesophageal reflux disease, and gallstones presented to the emergency department with a history of continuous retrosternal and right-upper-quadrant pain for the past two days. The initial tests reported elevated levels of liver enzymes, including alanine aminotransferase (ALT), alkaline phosphatase (ALP), and bilirubin, leading to a provisional diagnosis of biliary colic (Figure 1).