Olympic gold medal gymnast details battle with 'severe insomnia,' other 'wacko health issues'

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McKayla Maroney was on top of the world when she won a gold medal at the 2012 Summer Olympics in London. But she just went through a summer of hell.

Maroney, 27, posted on Instagram earlier this week for the first time since December a collection of photos she called a "trauma dump."

"Hey girl. It’s been forever. Hopefully you had a hot girl summer because I definitely did not. I had a summer of severe insomnia," Maroney wrote in her caption.

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Former U.S. Olympic gymnast McKayla Maroney participates in a news conference in the Russell Senate Office Building following a Senate Judiciary Committee hearing Sept. 15, 2021, in Washington, D.C.  (Chip Somodevilla/Getty Images)

Maroney said she "slept a total of 10 days out of 3 months."

"I’d like to say it was a nightmare, but you have to sleep to have nightmares," she added.

Maroney went to "tons of doctors" to find the root of the problem, and she eventually found out she has "histamine intolerance."

Since her diagnosis, she has cut out foods with histamine, and "I’ve started to sleep again."

United States gymnasts, from left, Simone Biles, McKayla Maroney and Aly Raisman arrive for a Senate Judiciary hearing about the Inspector General's report on the FBI's handling of the Larry Nassar investigation on Capitol Hill Sept. 15, 2021, in Washington. (Graeme Jennings/Pool via AP)

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"PRAISE GOD. Someone give me a round of applause, because I barely survived this one. I still need to figure out what’s causing the histamine intolerance but this is a good start