Case Presentation: A 21-year-old otherwise healthy female army recruit undergoing basic training was admitted to an outside hospital with severe abdominal pain, nausea, and vomiting. An abdominal CT was unremarkable. Laboratory results revealed hyponatremia (Na 117mmol/L) and polycythemia (Hgb 17mg/dL). Patient then developed severe chest pain associated with tachycardia, hypertension and a mild troponin elevation. [...]