A person who constantly suspects that others want to do or have done something bad to them, even if nothing like this happens at all, may be experiencing symptoms of a mental health condition called "paranoid personality disorder" (PPD).
Paranoid personality disorder is characterized by a pervasive and unjustified distrust and suspicion of others. Individuals with this condition often interpret the actions and motives of others as malevolent, even when there is no evidence to support these beliefs. They may be hyper-vigilant, guarded, and reluctant to confide in others due to their fear of being exploited or harmed.
It's important to note that diagnosing any mental health condition requires a thorough evaluation by a qualified mental health professional. Other conditions or factors may also contribute to similar behaviors. Therefore, if someone you know is displaying such symptoms, it is essential for them to seek professional help for a proper evaluation and diagnosis.
Encouraging the person to seek professional support can be beneficial. However, it is essential to approach the topic with sensitivity and understanding, as individuals with paranoid personality traits may be reluctant to trust or engage with mental health services due to their suspicions. Being supportive and non-confrontational can help create a safe space for them to consider seeking help.