RealMe

Nicole Richie suffered a collapse on the set of "The Simple Life" last week, and her health issues are slowing down the production – and pissing off co-star Paris Hilton.

According to Ben Widdicombe of the New York Daily News, the health-challenged Richie had to be "taken to her trailer immediately" after the incident on-set, and that at times she has "had trouble walking and speaking clearly," though no ambulances have been called.

The show's co-creator, Jon Murray, told the Daily News, "There were a couple times when [Nicole] felt a little woozy and she sat down for a moment, [but] we continued within five to ten minutes." Murray adds that Richie also suffered a "dehydration thing" earlier.