sometimes I am, sometimes I'm not.
Often I get paranoid about my best friend actually secretly talking behind my back to people and not being my friend at all. this is always a bad thing when it happens, because it turns me into a withdrawn mess and I avoid him and become nasty and he never has any idea what he's done. It's usually over something he's said or done on a forum and I get really upset about it...
I'm lucky he's a good person and forgives me every time.
I can also be incredibly paranoid about people following me home, but it's only sometimes, usually very late at night when I know that not many people are about. it's really not helping now that someone actually once did follow me home recently, and it was only the intervention of a driver giving me a lift and scaring him off that stopped anything horrible happening.
if that's paranoid, then I'm it.