(Cover) - EN Showbiz - Kourtney Kardashian is reportedly running herself ragged taking care of her babies.

The 33-year-old reality star shares two children with partner Scott Disick two-year-old son Mason and five-week-old daughter Penelope Scotland.

Kourtney apparently returned to business as usual way too swiftly after giving birth to Penelope on July 8 at Cedars-Sinai Medical Centre in Los Angeles.

"She did herself no favours by leaving the hospital just a few hours after the delivery, rather than resting up and enjoying professional help," an insider told the American edition of OK! magazine.

"But Kourt being Kourt, she wanted to get straight home and do things her way."

Kourtney is said to be barely functioning in the wake of her exhaustion.

"She's surviving on very little sleepsometimes just a couple of hours a night if she's lucky," the source revealed.

"And she's having to take care of two children. It's intense and would be a lot to handle for anyone. She's constantly exhausted and getting quite cranky. She's going to run out of energy, and needs to delegate some of the responsibilitywhether it's cooking, cleaning or diaper changingif only just to give herself some [rest]!" (C) Cover Media