The knot in her stomach, the worry that never went away anymore, twisted again.

"Oh no," said Newman, a knot twisting in his stomach.

A knot twisted in Ry's stomach, and suddenly his appetite was gone.

A knot twisted in my stomach, but I dared not think the worst.

The knots in his stomach twisted like snakes.

Unfortunately the hanging was botched in that the knot twisted under his chin.

The twisted knot in his stomach that had been there since he'd seen the murder twisted a little tighter.

A hard knot of desire twisted inside him.

A hard knot of fear suddenly twisted his insides.

But a search of his study turned up nothing and the knot twisted tighter in his stomach.