An individual who believes that someone is following them is likely displaying c. Persecutory delusions.
Persecutory delusions are persistent, unsettling, untrue fears that one will soon suffer damage or be treated unfairly by others. These beliefs can cause serious suffering, such as anxiety, depression, and terror, and they are present in some persons with delusional disorder, a rare mental condition.
The majority of persons with delusional disorder operate normally, but the dread of harm can be so intense that it makes a person withdraw or even consider death.
When someone has persecutory false beliefs, they think they are being persecuted or that someone they care about is being harmed or will be. The delusions are not unusual, therefore even if they are untrue, they might actually occur.
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