neurasthenic personality

neur·as·then·ic per·son·al·i·ty

an obsolete term for a condition characterized by some of the following features: poor appetite or overeating, insomnia or hypersomnia, low energy or fatigue, low-self esteem, poor concentration or difficulty making decisions, and feelings of hopelessness. In its most severe form it may become a chronic disturbance of mood called dysthymia (depressive neurosis) in which a depressive mood accompanies the features listed here.