At the time, Kris Jenner took her to doctors. However, the model did not know she had anxiety until much later.
The 24-year-old explains, "She took me to a bunch of doctors just to make sure it was all OK physically, and I was. No one ever told me that I had anxiety."
However, in recent years, the Keeping Up With The Kardashians star has learned more about her anxiety.
"Maybe like three years ago, four years ago, it came back completely full-on and I would have crazy panic attacks. Finally, I got the information that I needed about it," she explained.
With the spread of COVID-19, Jenner has started to open up more and more about this struggle, as she known many people are experiencing similar anxieties during this difficult time.
In fact, Jenner has partnered with Kenneth Cole for his Mental Health Coalition, which encourages people to share how they are coping in quarantine on Instagram.
The model started the #howareyoureallychallenge on Instagram, posting a video that encourages a candid conversation about mental health, starting with the model herself.
She explained, "I have been doing a lot of thinking during quarantine, mostly about mental health. I have good days and I have some really anxious days."
To keep the challenge going, the model tagged Kim Kardasian and Jen Atkin as well as Justin and Hailey Bieber.