Jennifer Lawrence had to delay her "Late Show" appearance, because of a health scare that turned out to just be really bad gas. After three weeks of of stomach pain, she went to the emergency room, thinking she had an ulcer. "You can only s--t your pants so many times, before you have to go to the hospital," she said.
Of course, once at the hospital, she was wacky yet charming enough to leave with an interview anecdote. She's self aware about what a "head case" she is. After her "endo-scopo-something" (probably endoscopy), she woke up and started talking about the Kardashians! How could you not love her, America?! She had a tiny camera inside her and then she just wanted to talk about Kim and the gang.
Seriously, you need to watch this interview, so that you can see Jennifer Lawrence out Jennifer-Lawrence-ing herself while discussing flatulence.