Olympic gold medalist McKayla Maroney was hospitalized after experiencing "severe pain" in her back and stomach that turned out to be kidney stones.

In the early morning hours of Feb. 25, the infamous athlete posted a photo of the Benjamin & Carmela Du Emergency Pavilion in Orange County, California. She later posted images from a hospital on her Instagram Story bed and spoke about the pain she was experiencing.
"Tuesday I was throwing up all day, with severe pain in my back and stomach," she wrote. "Had to come to the ER at 3am because pain kept getting worse, and I couldnt' stop throwing up."
McKayla, 25, then added, "Just got my CT Scan back. I have a few kidney stones."

Kidney stones are tremendously painful. The Mayo Clinic describes them as "hard deposits made of minerals and salts that form inside your kidneys." The most common way to get rid of them is to naturally let them pass out of the urinary tract. In some cases, medical procedures or even surgery are needed.
McKayla was a member of the 2012 gold medal-winning United States Olympics team that was dubbed the "Fierce Five." She also won an individual silver medal on the vault. At the ceremony during which she received her silver medal, McKayla seemed less than thrilled with the results — she memorably appeared unimpressed while pictured on the podium, creating one of the most viral moments of the year. She later recreated her "not impressed" look with President Barack Obama during a visit to the White House.

Since retiring from competitive gymnastics, McKayla has acted on several TV shows, including "Hart of Dixie" and "Bones." She's also played herself on several other programs.