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We have no idea what's going on, but we feel for him!

Rob Kardashian has struggled with his weight in recent years and has been ridiculed in the press for it, but we're not sure if that's what he's referring to in his latest Twitter post, or if he's hinting at other issues?

"No one will ever understand how much it hurts," he wrote in a mysterious tweet on Tuesday.

Maybe Kris Jenner should take time out of her busy schedule vacationing in Thailand to get her son the help he seemingly desperately needs?

It sounds like he's battling depression, and being in a dark place while in the spotlight can't be easy!