From MayoClinic.com

Nonulcer dyspepsia can cause a variety of symptoms, including abdominal pain. Sometimes, people see their doctors for what they think is an ulcer, but isn't. Although you may have gnawing upper abdominal pain, diagnostic tests don't reveal an ulcer or other digestive problem - all tests come back normal. If this is so, you may have a type of indigestion called nonulcer dyspepsia. The term "dyspepsia" comes from the Greek roots dys, meaning "difficult," and peptein, which means "to digest."

Nonulcer dyspepsia is a common, sometimes long-lasting (chronic) disorder of the upper gastrointestinal system, which includes your esophagus, stomach and the first part of your small intestine (duodenum). The disorder can cause signs and symptoms that resemble those of a peptic ulcer, such as pain or discomfort in your upper abdomen, often accompanied by bloating, belching and nausea.

• Abdominal pain
• Bloating

Nonulcer dyspepsia occurs for no apparent reason and isn't necessarily related to a particular disease. Rather, the culprit may be a temporary problem, such as eating too quickly, overeating or dealing with a stressful event. For some people, it's a chronic condition. For many people, however, its symptoms are often short-lived and preventable.

Signs and symptoms

The signs and symptoms of nonulcer dyspepsia may include:

• A burning sensation or discomfort in your upper abdomen or lower chest, sometimes relieved by food or antacids

• Bloating

• Belching

• Gas (flatulence)

• An early feeling of fullness with meals

• Nausea

An unhealthy lifestyle can contribute to nonulcer dyspepsia. Stress, fatigue, poor diet, not enough rest, and lack of exercise may aggravate its signs and symptoms.

• Bloating

• Fatigue

• Flatulence

• Gas and gas pains

• Nausea

Nonulcer dyspepsia (indigestion) > next > 1 > 2 > 3 > 4