At a Loss...

A 31-year-old woman presented to the emergency department with an 8-month history of nausea and episodic epigastric pain that was accompanied by fatigue, headache, loss of appetite, and loose stools. During a review of systems, she also noted numbness and tingling in both hands and both feet, as well as difficulty walking for the past 3 months. She reported no fever, muscle weakness . . .Mehr