kik syndrome
When you use the messaging app Kik too much you start to hear the text-back noise even though no one texted you.
Guy: *hears kik text-back noise in mind*
Guy: huh, no one texted me back
Guy #2: Dude, you're suffering from kik syndrome
Guy: huh, no one texted me back
Guy #2: Dude, you're suffering from kik syndrome