paranoid thoughts

Why does my mind always jump to the worst places when I don't hear back from someone? Not only oh no, what could I have done wrong? did I upset them somehow?, but then to what if they're lying dead somewhere? what if they are drugged and kidnapped? what if I never see/hear from them again? I don't know, maybe I just have an overactive imagination, but I can't stop FREAKING OUT when it has been a long time and someone hasn't called or texted me back. Even though I can also think of plenty of logical explanations why they wouldn't be responding, none of those logical thoughts can do anything to push away all of the negative and extremely paranoid thoughts. I wish everyone could just respond to me within an hour so I would not feel this way. Or that I could follow my own advice and chill out and not have to worry about everyone else so much. Please go away, horrible thoughts!!!!