Sign or symptom	Prevalence (%)
Anorexia	100
Weakness, fatigue	100
Hyperpigmentation	94
Gastrointestinal symptoms (e.g., nausea, vomiting, abdominal pain, constipation, diarrhea)	92
Hypotension (systolic blood pressure < 110 mm Hg)	~90
Salt cravings	16
Postural dizziness	12
Vitiligo	10 to 20
Muscle or joint pain	~10