"You're just being paranoid" is a very common put-down in English, used to dismiss people who are concerned about being treated unfairly.
I wonder if people say the same thing in German. I have to admit that the motivation for my question is not really related to the German language. I am trying to confirm a personal theory that the use of the phrase in English is largely based on the movie "The Caine Mutiny" starring Humphrey Bogart. I am posting the question on this site because of the high quality answers I am used to get here.