The symptoms of an Addisonian or "adrenal" crisis include:
Sudden, penetrating pain in the lower back, abdomen, or legs Severe vomiting and diarrhea Dehydration Low blood pressure (BP) Loss of consciousnessIf not treated, an Addisonian crisis can be fatal.
This answer is based on source information from the National Institute of Diabetes and Digestive and Kidney Diseases.