A 36-year-old woman comes to the emergency department after having severe epigastric and right shoulder pain for 2 hours. The patient also had an episode of emesis. When asked about her diet, she explains that she unintentionally fasted all day and had a cheeseburger 2 hours ago. The patient had a similar episode last month but did not seek medical attention as it was less severe and resolved spontaneously in a few hours. Her past medical history is significant for heartburn, and she takes ranitidine. On examination, the patient's abdomen is soft and nontender. About 4 hours after the pain began, it resolves completely. Which of the following best explains this episode?
A Acid hypersecretion and mucosal irritation
B Fat necrosis
C Hollow organ contraction and outlet obstruction
D Outlet obstruction and mucosal inflammation
E Peritoneal irritation
F Vascular obstruction