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Ronnie Ortiz-Magro has had to put the fist-pumping on hold. The 27-year-old "Jersey Shore" star has been hospitalized with kidney stones, his rep confirmed to Us Weekly. The news was first reported by People.

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Ortiz-Magro, who is still dating his longtime girlfriend and "Jersey Shore" co-star Sammi Giancola, tweeted to his fans that he was in the hospital on Saturday, Apr. 27. (Shortly before he became ill, Ortiz-Magro tweeted that he was in Florida promoting his new Smush Cocktail line.)

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"Wouldn't wish this feeling on anyone!" he wrote. "Kidneys. FML."

When one follower suggested he take some protein, Ortiz-Magro tweeted back, "I have to because I can't hold any food down from the pain." 

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"Worst feeling," he added. "So uncomfortable."

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