Hypertension
Paroxysms or crises
Headache
Profuse sweating
Palpitations
Apprehension
Pain in the chest or abdomen
Nausea
Vomitting
Flushing
Tachycardia
Weight loss
Fever
Sipple's syndrome (MEN II syndrome)
Medullary carcinoma of thyroid
Hyperthyroidism