New Delhi, Nov 23 (ANI): Jennifer Lawrence went to hospital after being struck down with bad stomach cramps, which was diagnosed as flatulence. The 23-year-old Oscar winner, who recently cancelled her morning appearances to promote her new movie ' The Hunger Games: Catching Fire' after she was struck down with bad stomach cramps, was upset left red-faced when doctors diagnosed her with bad gas. During an interview with David Letterman on ' The Late Show', she revealed that she thought it was an ulcer, but later got to know it was a "falser".