" Suddenly she felt a need to urinate. "You see," she cried. "I need to pee. That's proof positive I'm not dead!"
But they only laughed again. "Needing to pee is perfectly normal!" they said. "You'll go on feeling that kind of thing for a long time yet. Like a person who has an arm cut off and keeps feeling it's there. We may not have a drop of pee left in us, but we keep needing to pee. "

― Milan Kundera , The Unbearable Lightness of Being