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Ali Vincent is ready to talk about a secret she’s been keeping for months.

The former contestant of “The Biggest Loser” revealed that she was sexually assaulted during a massage on Saturday’s episode of “Oprah: Where Are They Now?.”

Through tears, she talked about that horrifying moment in 2015.

“I was getting a massage and I fell asleep, as I often do in massages, and I felt so safe in this place, I had no guard up. And I woke up to — I woke up to some one feeling in my vagina,” she said. “And I was just like in shock, like what’s going on, what’s happening? And then I just jumped up and I ran out and just hid. And I was sitting there in a ball and I was just shaking, and I don’t know how to explain it. But I just was so afraid. I was scared.”

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She said that the she told the manager about the incident and he doubted her story.

Vincent has kept the assault a secret for the last year until she realized that it was affecting many aspects of her life.

“I haven’t talked about it because it’s not something you just talk about,” she said. “A lot of things have changed over the last couple of years in my life. I moved here, to Northern California. My routine completely changed. I’ve realized, over the last year, as I’ve gained this weight, it was so much of my life slowed down, that a lot of stuff came up that I just hadn’t dealt with.”

Vincent won season 5 of “The Biggest Loser” after losing 112 pounds. She admitted that she has nearly gained all of that weight back and is currently on Weight Watchers to help get her weight down.

“I’m hitting these little markers of success, and with each successful moment I feel empowered and I feel like I am getting my strength back.”

(h/t PEOPLE)

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