The tiger had no destination, only the constant tug of self-preservation in the pit of his stomach, some vague, inborn sense of what he was looking for, which carried him onward.

NEWYORKER: The Tiger��s Wife

Even today, over six decades later, just hearing that long wail of the warning siren on old newsreels and films gives me that same cold knot of fear in the pit of my stomach which I always felt all those years ago.

BBC: Stanley Ross remembers the Blitz

It is only dealing with the possibility of our own death or taking care of someone we love directly do we truly understand the pit in the stomach of death.

FORBES: Should We Ration End Of Life Care?

But tonight, as I prepare to step onstage, a hollow, little ice cube of doubt forms in the pit of my touchy stomach.

NPR: Kristin Chenoweth Is 'A Little Bit Wicked'