Revealed: Kendall Jenner Scary Illness !

Kendall Jenner is just 20 and she is battling with a scary health condition. On the next Sunday's brand-new episode of Keeping Up With the Kardashians, Kendall admits that she doesn't "feel fine." She says...
"I wake up in the middle of the night and I can't move," Kendall confesses in the video above.

Then during a phone conversation with her mom Kris Jenner, Kris tells Kendall, "I think you've just got anxiety."

But Kendall think something more serious is going on. She tells her mom:
"Everyone says I'm fine, but I don't feel fine,"