"It was exhaustion; he had been traveling," she said. "He's fine."
Sims declined to say which hospital Chappelle visited or release other details.
Chappelle walked away from a $50 million deal to continue his Comedy Central show in May 2005 and briefly took a respite in South Africa. He has said reports that he checked into a mental health center in that country are false.
Photos: Dave Chappelle
He has since returned to the standup circuit. In April, he broke the endurance record at the Laugh Factory comedy club in Los Angeles by delivering a more than six-hour-long standup routine.