Indigestion is a condition that is frequently caused by eating too fast, especially by eating high-fat foods quickly.

Symptoms of indigestion are as follows:

• A pain or a burning feeling in the upper portion of the stomach
• Feeling sick to one's stomach; nausea
• Feeling bloated
• Sometimes uncontrollable burping
• Heartburn
• A bitter taste in the mouth from stomach acid coming up into the esophagus.