From AP:

Late Saturday, Teresa Heinz Kerry, the wife of the Democratic presidential candidate, was taken to a hospital in Mason City, Iowa, after complaining of an upset stomach, a spokeswoman said. She was taken to Mercy Medical Center-North Iowa by ambulance from the airport.

"As a precaution, Mrs. Heinz Kerry had a series of routine tests performed and was released," said Sarah Geggenheimar, a spokeswoman for Heinz Kerry. "She is feeling better and is traveling to her home in Pittsburgh tonight as planned."

Heinz Kerry had just finished a private meeting with a group of local Democrats to talk about health care. She was traveling separately from her husband.

CW

What a wimp, if I get an upset stomach I just continue going about my day like a normal person