Mr. Lopez, a 57-year-old man, reports burning chest pain that worsens when he lies down after dinner. He says spicy foods and caffeine make it worse. He's been popping antacids like candy. As the nurse, what do you think this is?

A. Pancreatitis: Pancreatitis presents with severe epigastric pain that radiates to the back, not worsened by lying down or triggered by spicy food. Antacids offer little relief. B. PUD (Peptic Ulcer Disease): PUD typically causes gnawing or burning pain relieved or worsened by eating, but does not usually worsen with lying down. C. Gastritis: Gastritis involves inflammation of the stomach lining and may cause discomfort, nausea, or bloating, but not typically burning chest pain aggravated by position. D. GERD (Gastroesophageal Reflux Disease): GERD causes burning chest pain (heartburn), worse after eating and when lying down. Spicy foods, caffeine, and frequent antacid use point to acid reflux.