Does your friend keeps thinking all the time? And all they got for you are stressful questions? If yes, then you are friends with an over-thinker. They just can’t control their mind even for a few minutes; something keeps running in their minds all the time. They analyse everything, even your jokes, while continuing to ponder over what you actually might have meant. So here are some signs which can help you detect if your are friends with an over-thinker.