The 31-year-old reality star told production team she was too sick to shoot on Thursday, March 31, reported TMZ.
Sources close to production, however, claim it was not because of the flu, but Khloe's stressed out worrying about her estranged husband's alcohol addiction.
As previously reported, 36-year-old Odom's refusing Kardashian's request to get treatment for his drugs and alcohol addictions.
The estranged couple has been fighting about it all week. Sources say Kardashian just needed a break.