My office just played jamais vu. You should play it, too.
Write out the numbers 1-30. Then write the word "door" beside each of those numbers, as fast as you can. Did you start to doubt that "door" is a real word? Then you've been jamais-vued!
It's an experiment that this doctor named Chris Moulin did. Apparently, 68 percent of people experience that feeling.
Also, have you ever felt like your mom got replaced by someone who looks exactly like your mom but isn't your mom? That's Capgras delusion. If you've felt that, you might be schizophrenic.
Kevin just said, "I feel like I'm running as fast as I can with shoes made of popsicle sticks." When he was little he made little barking noises when it was too quiet.