She was appearing at the 2012 Exxxotica Expo on behalf of Vivid Entertainment to promote their adult film parody of Avengers. A Vivid representative tells TMZ the company was worried about her following yesterday's medical scare but Chyna insisted she was fine.
Chyna passed out in the lobby of the Miami Beach Convention Center and was admitted to Mt. Sinai Medical Center in Miami Beach.
In addition to passing out yesterday at the adult film expo, she was ejected from a party on Thursday night for unruly behavior and passing out in a pool.
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