Kim Kardashian's social media silence isn't just because of her Paris robbery — the reality star is also battling a mystery illness!

Sources reveal exclusively to In Touch that the mother-of-two has been diagnosed with a serious health issue, and is fighting to get better.

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"Kim is sick and she needs to face that and get strong,” an insider says. “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.’”

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This is not Kim's first health scare. In recent years, the reality star has been diagnosed Psoriasis and severe fibroids during her pregnancy, along with currently experiencing nightmares stemming from her Paris attack.

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"She’s been suffering tremendously since she was robbed, but this isn’t only psychological. She has real health problems," the source adds. "She’s really ill.”

Get better soon! For a look at Kim and Kanye's cutest moments, check out the gallery below!