Although individuals with conditions listed below could also experience and present with similar symptoms and signs as individuals with AD, differential diagnosis has to be performed in order to establish true origin of these symptoms.

  • Migraine and Cluster Headache
    • usually unilateral (frontal and periorbital)
    • usually intense and brief
    • age
    • previous history of BP
    • widespread symptoms of catecholamins
    • tachycardia
    • elevated levels of both NA and E
  • of Pregnancy
  • Drug Abuse



High blood pressure with unknown etiology.
Tumor of adrenal medula (suprarenal gland). Elevated levels of both Norepinephrine and Epinephrine.