Paranoia
Overview
Although paranoia is the most prevalent sign of psychosis, it is widespread in the general population. Paranoia is the belief that you are being threatened in some way, even if there is no evidence, or very little evidence, to support this belief. Delusions are another term for paranoid ideas. There are several types of threats that you may be concerned about.
Exaggerated suspicions might also be the source of paranoid thinking. For example, someone made a derogatory remark about you once, and you suspect that they are waging a hate campaign against you.