Rob Kardashian has posed a cryptic message on Twitter that is sure to worry the rest of his family.

The reality TV star’s struggle with his weight has been very publicly documented on Keeping Up with the Kardashians and now it seems the 27-year-old is at his wits end.

After a break from Twitter, the celebrity posted a mysterious tweet yesterday, declaring that, “no one will ever understand how much it hurts.”

On top of his ongoing weight battle, Rob has been open about his struggle with depression.

“I’ve never felt so down depressed in my life,” he revealed on the show. “I’m trying to be in the fashion industry and I’m not going to be taken seriously when I’m fifty pounds overweight. It’s embarrassing to the family.”

Rob also did not attend the family’s recent trip to Thailand.