Constipation
Palpitations
Postural hypotension: From volume contraction
Weakness
Fever
Hypertensive retinopathy
Headaches
Nausea
Pallor
Severe hypertension
Weight loss
Tremor
Duration may vary from seconds to hours
Diaphoresis
Anxiety, sense of doom
Flank pain
Hypertension: Paroxysmal in 50% of cases
Frequency may vary from monthly to several times per day
Epigastric pain
Tachyarrhythmias
Neurofibromas
Pulmonary edema
Over time, spells tend to occur more frequently and become more severe as the tumor grows
