It looks like there's a good reason why Kim Kardashian hasn't been in a very good mood lately. Apparently, the reality television star has been having a hard time shedding off her post-baby pounds since giving birth to her son, Saint West, back in December. Some sources are saying that not only is she struggling to lose the weight, but she's also gaining some in the process, too.

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According to Celebrity Dirty Laundry on Friday, Kim's frustration level is high as she's been trying to hide her weight gain in baggy clothes whenever she's out and about. Many sources claim that Kim has been uncharacteristically hiding her body rather than flaunting it, as she normally does.

Blogger Amanda Austin wrote, "Kim Kardashian has been trying desperately to keep her weight hidden. You know something is up when the diva stops running around half naked, and is no longer snapping naked photos for social media. Kim has never had any shame in her curves, so its pretty alarming when she steps out fully clothed with barely an inch of skin showing."

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She added, "Aside from the fact the reality TV star is no longer rocking a baby bump, she appears to be just as large and in charge as ever."

So far Kim herself has not made any comments about the report, although there's no doubt that she definitely is trying to get back to her pre-pregnancy weight as fast as possible. The reality star has been hard at work promoting the Atkins diet on her social media accounts and has even revealed in the past that she was never a fan of her pregnancies and the weight gain that comes with it in the first place.