Main Symptoms of Functional Dyspepsia Functional dyspepsia is a chronic upper-gut disorder in which epigastric pain or discomfort is not explained by structural disease, medications, or metabolic causes. Symptoms fluctuate over months, often begin in early adulthood, and may coexist with anxiety, migraine, or irritable bowel syndrome. Recognising the typical pattern avoids unnecessary imaging and guides targeted therapy. Core epigastric complaintsPost-prandial fullness: a heavy, bloated sensation that starts soon after the first bites and may last more than two hours.Early satiation: feeling “suddenly full” before finishing a normal-sized meal, leading to reduced food intake and sometimes weight concern.Epigastric pain: burning,... Learn more