Why do I have these random, paranoid thoughts?

i think you are very paranoid, but you can never be too careful. i'm a very paranoid person as well, just in a different way. i feel like people are staring at me like they wish to fight me or tallking about me whenever i leave the room and saying negative things. people can do studpid things, but to be honest you being paranoid might not be all that bad. people might not be able to hurt you physically or emotionally. the only problem is by not trusting people it is hard to establish relationships with them.