Stress and anxiety aren't a direct underlying cause ... can worsen as a result. Acid reflux causes stomach contents to flow backward into the esophagus, leading to heartburn and coughing.

Heart in your throat. Butterflies in your stomach. Bad gut feeling. These are all phrases many people use to describe fear and anxiety. You have likely felt anxiety inside your chest or stomach, and ...

But with stress and anxiety over such a high-stakes race sending Americans running to the pharmacy’s stomach aisle ... are experiencing [gastrointestinal problems] because they’re anticipating ...

Pet owners should gradually adjust the routines of their animal companions before the clocks go back as sudden changes can cause confusion, anxiety and even an upset stomach, an expert has said.