We must go and find a bite to eat before my stomach falls apart.

Even now, after all these years, he could not look at her without feeling his stomach fall away, a dryness come to his mouth.

His stomach fell as he saw a black figure pass.

His stomach fell when he saw who it was.

There was a moment's blankness, then he felt his stomach fall away.

He was breathing so fast, so hard, that his stomach rose and fell with it.

The doctor felt as though his stomach would fall straight through into the floor.

"I expect the poor man ate so much seafood his stomach rose and fell with the tide."

Jack's stomach fell toward his shoes, the elevator lurched upward.

My stomach fell, but my foot stayed on the pedal.