A rapidly accelerating pace of life, the need for more frequent and close contacts between people, and abundance of information received lead to the inevitable occurrence of stressful situations which require the neuropsychic stability of the individual. Premorbid personality traits can act either as stabilization factors and contribute to the adaptation of the individual to reality, or support personality disorganization and lead to disintegration and maladjustment. Thus, the depletion of the personality's adaptive resources causes the emergence of pathological psychoemotional states. At present, the most frequent negative emotional states that a person encounters are the experience of loneliness, depressive and neurotic states. Of particular interest, in our opinion, is the analysis of severity of the emotional states in respondents of the clinical and non-clinical (conventionally healthy) samples. This paper presents the analysis of pathological emotional states of the individual (experience of loneliness, depressive and neurotic states) as a cause of disorders in adaptation and socialization of the individual, as well as the analysis of personality traits in patients undergoing treatment compared to those who have never sought medical help for mental health problems. The analysis of data obtained in the empirical study revealed significant differences between hospital patients (n = 72) and conventionally healthy individuals (n = 95) in terms of their personality traits in the form of sharpening of hypochondriacal, paranoia and schizoid manifestations, a tendency to hysteroid reactions, etc. In addition, significantly higher indicators of psychoemotional state were observed, namely: depressive experience of varying degrees of severity, high levels of various aspects of the experience of loneliness and indicators of neurotization and psychopathization.