L'appel du vide ("call of the void") - The unsettling feeling that creates unnerving, shaky sensation of not being able to trust one's own instincts.

“It’s a long-held idea that if you put a name to a feeling, it can help that feeling become less overwhelming,” she said. “All sorts of stuff that’s swirling around and feeling painful can start to feel a bit more manageable,” once you’ve pinned the feeling down and named it.