Take this medication 'on an empty stomach'. [=when your stomach is empty because you have not eaten for a time]
When I had the flu, just the thought of eating made me 'sick to my stomach'. [='nauseous']
She felt a flutter in 'the pit of her stomach' when he walked through the door.
(..) It's not supposed to look like a personal diary, Yes, sir, - How are you, Deputy Bono? - Very good, sir, - Looking good, Hold your stomach in, - Thank you, sir, Mr, Johnson, I understand that you will be off probation soon, Your work has improved, There will be a final review, (..)1994 The Glass Shield