Olympic gymnast details terrifying moment after going in anaphylactic shock days before competition

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Levi Jung Ruivivar’s Olympic dreams were nearly put on hold after the gymnast suffered a serious health scare just days before the opening ceremony in Paris. 

Ruivivar, a former member of the U.S. women’s gymnastics team set to compete for Team Philippines this summer, detailed the moment she went into anaphylactic shock on Monday because of a "severe" allergy to tree nuts. 

Levi Jung-Ruivivar concentrates during the 2023 U.S. Gymnastics Championships at SAP Center on Aug. 25, 2023. (Kyle Terada-USA TODAY Sports)

"This Monday I was taking an evening walk when I began to have an anaphylactic reaction. I didn’t ingest tree nuts (to which I am allergic) or suffer from a bug bite, but for some reason I suffered from a severe allergic reaction," she said in a post on Instagram, sharing a picture of herself receiving medical care. 

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"On the way to the treatment center my allergy symptoms escalated rapidly and my breathing became significantly labored, my throat began to constrict, my chest was itching, and I had severe swelling."

Ruivivar explained that her symptoms were bad enough that she eventually decided to use her EpiPen on the way to the medical center. 

Levi Jung-Ruivivar competes in the Uneven Bars routine during the women's senior division of the U.S. Classic at Maverik Center on July 30, 2022 in West Valley City, Utah. (Alex Goodlett/Getty Images)

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"I just want to let everyone know that I am 100% safe and healthy. My muscles are fatigued and it definitely took a toll on my body, but