Khloe Kardashian has reportedly stopped eating or sleeping due to her husband, Lamar Odom's health crisis.

"Her mom and sisters are very worried for her, they’re worried about her health. She’s not making it any easier on herself because she won’t leave his side. She’s been getting a few hours of sleep a night and often less than that ... And Khloe hasn’t really been eating much," a source tells Hollywood Life.

READ MORE: Khloe Kardashian dumps James Harden to care for Lamar Odom

The 31-year-old reality star has reportedly been by Odom's bedside since earlier this month, when he was found unconscious at a Vegas-area brothel. The 35-year-old former NBA star had had several small strokes as a result of an intense drug-and-alcohol bender.

READ MORE: Doctors confirm Lamar Odom will survive but needs rehab

Khloe and Lamar broke up two years ago and signed divorce papers, but they were never filed. As we earlier reported, Kardashian called off the split last week, in part so she could continue making medical decisions on Odom's behalf.  There's been reports that even before Lamar's medical crisis, the pair had been in close touch.

Odom was initially in a coma after his collapse but last weekend showed signs of improvement by breathing on his own. On Thursday,  October 22, he reportedly had one and possibly two emergency surgeries that left him "fragile" and "emotional."

READ MORE: Lamar Odom spent N15m in one weekend at brothel

Life & Style magazine reports that the hospital has apparently barred anyone but Khloe from visiting him, which has left her isolated. "Now that he's on lock-down, none of her friends are going. She's all alone," the source added.