dysautonomia

noun
dys·​au·​to·​no·​mia | \ˌdis-ˌȯt-ə-ˈnō-mē-ə \

Medical Definition of dysautonomia 

: a disorder of the autonomic nervous system that causes disturbances in all or some autonomic functions and may result from the course of a disease (as diabetes) or from injury or poisoning especially : familial dysautonomia

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