“Following an arduous 300 shows and an arduous 18 month schedule that left him incredibly fatigued, Katt felt compelled to be with his family in an effort to deal with his stress,” Williams’ reps said in a statement to the Los Angeles Times. “While doing so, he is under a doctor’s care. As this is a private and personal matter, we hope the media will respect his family’s request for privacy.”

The comedian was recently arrested on weapons charges in New York City following a traffic stop, but managed to make bail in time for a performance at Carnegie Hall Nov. 6. He also recently failed to show for an appearance on “Late Night with Conan O’Brien.”