Holly tried on a pair of faded jeans on Monday (10 March), only to discover that they no longer fit her.
She tweeted: "Nothing fits me anymore! don't know whether to be happy or sad only wore these once."
Holly's clearly pleased with the results of her hard work in the exercise department, but frustrated that her old wardrobe won't fit.
There's only one way to solve this Holly... get yourself to the shops!
The reality star, 21, has been seeing a personal trainer called Jono, who has been whipping her into shape.
Holly's also added some Protein World protein supplements to her diet, and has been sharing photos of herself working out at the gym as well as flashing her waist in a series of selfies.
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