If your cat is checked by a vet and there is nothing to worry about, then it is behavioral problem. Once you know the problem is behavioral, then you can find the reason behind the problem. There are lots of important reasons why cats urinate outside of the litter box. try to tell you the possible reasons about why cats urinate outside of the litter box, and how to stop cats from peeing on carpet, furniture, and bed. This system I recommend to you has all the details about the reasons and the solutions.
Medical Definition of paranoia. 1  1: a psychosis characterized by systematized delusions of persecution or grandeur usually without hallucinations. 2  2: a tendency on the part of an individual or group toward excessive or irrational suspiciousness and distrustfulness of others.
delusion of persecution, a morbid belief that one is being mistreated, harassed, or conspired against, as seen in paranoia and paranoid schizophrenia. The patient may single out a person or group as the source of persecution.