Burning pain or discomfort in the upper chest and midchest, possibly involving the neck and throat, that may get worse when lying down.

Don't eat two hours before lying down, and avoid fats, chocolate, and citrus. Some over-the-counter antacid medications help immediately; others work long term.

See a doctor immediately if:

• Pain in chest occurs with other symptoms, such as sweating, shortness of breath, or pain in the arm or jaw
• Heartburn symptoms don't respond to over-the-counter antacids

Make an appointment to see a doctor if:

• Heartburn occurs two or more times a week
• Reflux symptoms interfere with sleep
• New cough develops
• Difficulty swallowing, nausea, or vomiting
• Self-treatment doesn't help
• Unintentional weight loss