What other conditions resemble pheochromocytoma, which includes high hormone levels consistently for 6 months?

High catacholamines: PHEO is a relatively rare condition and there is overstimulation from euro endocrine glands a marked rise in your BP and pulse is a common initial finding. It requires a proper workup with an internist , renal and endo will also be involved. There are other disorders of abnormal catecholamine release but you need a good workup and treatment