Despite a stint in celebrity rehab, troubled trainwreck Joanie Laurer is still the life -- or lifeless -- of the porn party. Laurer, aka Chyna, wrestled to stay conscious this weekend, according to TMZ. The former WWE star passed out at least three times while attending the 2012 Exxxotica Expo in Miami Beach. On two occasions, the 42-year-old recovering addict was taken to the hospital following the health scares. Chyna was at the porn convention to promote her new flesh flick, a play on The Avengers. In the film made by Vivid Entertainment, Chyna stars as She-Hulk. The trouble reportedly began Thursday night when Chyna was given the boot from a party where she supposedly passed out in the pool after jumping in naked. The following day she fell unconscious at the expo. Keeping it real, she passed out once again on Saturday and was rushed to a nearby hospital in Miami Beach. It's important to note that Laurer has struggled with substance abuse in the past. In 2008, the professional wrestler appeared on Celebrity Rehab to address her issues with drugs and alcohol. In 2010, she overdosed on sleeping pills. Prior to jumping full force into the porn industry, Chyna appeared in a homemade sex tape called 1 Night in Chyna.