Keeping up with the Kardashians son Rob Kardashian has fallen back into his old ways! Although it seemed recently that he was back on track to lose weight and get his life together, a source close to the clan told Breaking Celebrity News exclusively that those hopes have been dashed and "the entire family is terrified!"

"Rob has gone off the rails again," the insider said. "He is, once again, out of control."

According to a separate source, stepmother Caitlyn Jenner, 66, "has been saying she really feels like Rob needs to go into rehab."

As Breaking Celebrity News previously reported, in recent months the 28-year-old only son of late Robert Kardashian Sr. had seemed to be on the mend after a series of setbacks.

"He was doing so well for a minute but is now off the Breaking Celebrity News again and he seems to feel neglected because the entire family is focused on Kim, as usual," said the source.

"Nobody knows what to do anymore because Rob will not even leave the house. He seems really bad off and everyone is really worried," the insider told Breaking Celebrity News.

Do you think that Rob Kardashian should enter rehab? Tell us your thoughts in the comments below.