Brooke Mueller was hospitalized this afternoon after an assistant found her napping and unresponsive. Brooke's rep tells

    "An assistant thought Brooke was non-responsive while she was napping and hastily called an ambulance. As a precaution, Brooke was brought to a local hospital and discharged after an hour. She was diagnosed with exhaustion and dehydration and is now fine and resting at home. That's it."

Mueller, Charlie Sheen's ex-wife, has been in rehab numerous times and most recently completed an in-patient treatment program in April. Mueller married Sheen in May 2008 and gave birth to twin boys Max and Bob in 2009. The couple divorced in May, 2011.

X17online caught up with Brooke last night at Mr. Chow, as she was on a date with her new boyfriend, jewelry designer to the stars, Pascal Mouawad.