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.
(..) - No. - Laugh as much as you want. One day Magali will be in my bed. Hope well and have well. Careful with the appetisers, given your stomach issues... I'm not a doctor, but I know if you take Imodium, something's wrong. Pardon me. Please... Can I ask you a favour? A little piece for me? (..)2011 Intouchables