Kim Kardashian is having a tough year given her robbery and her husband, Kanye West's hospitalization — and now In Touch can exclusively reveal that the reality star has been diagnosed with a serious health condition.

It is unclear what exactly she is suffering from, but her loved ones fear she is "not going to be OK."

MORE: Kanye West Has Blonde Hair Following Hospitalization — See the Photo

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“She hasn’t even told her friends about her illness yet. At this point, friends have heard she’s sick, but they’re in the dark and calling it her ‘mystery illness,’” says an insider.

The source adds that knowledge of the diagnosis contributed to Kanye's meltdown.

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This comes on the heels of In Touch's revelation that Kim has been speaking with divorce lawyer Laura Wasser and has been "miserable" in their two-year marriage.

"Kanye has absolutely no idea that any of this is happening, but Kim has already asked to have divorce documents drawn up. An announcement could happen at any time," says an insider.

Relive Kim and Kanye's best family moments in the gallery!