“The truth is, I kind of spiraled, ” Ali said back then. “I got home and I was like, ‘What do I do? What do I do without the ranch? ‘ I went out, I partied with my friends … I woke up and I was just like, ‘This isn’t me. I don’t want this life anymore.'”

So, Ali got back on track. Now, however, things have changed once again.

Around the eight-year anniversary of winning “The Biggest Loser, ” Ali revealed in a Facebook post that she has since gained back much of the weight she lost.

Being so honest and vulnerable was scaring, Ali tells “Oprah: Where Are They Now — Extra” in the above clip. She debated for hours whether or not she should open up publicly like that.

“All day, I merely “ve thought about it” and I didn’t post. I was depressed and I was embarrassed and I was sad, ” Ali says. “I was hiding.”

The day of her anniversary for winning “The Biggest Loser, ” hence, wasn’t a day of festivity for Ali.

“I only didn’t get out of bed the working day, ” she says. “I was just ashamed. I was embarrassed … It was a low point. It was likely my lowest point.”

Ali knew she was in a precarious situation with her health and weight. “If I keep going in the direction I’m going, I don’t know if I’ll ever come back, ” she says. “I don’t know if I’ll ever be able to have this strength to do something different.”

It was especially difficult to acknowledge, as Ali felt that her strength was something she had become known for.

“I was the first female to win ‘The Biggest Loser.’ I’m Ali Vincent. I’m supposed to be strong. I’m supposed to know how to do this, ” she tells. “I do know how to do it. I do know what I need to do … So, I was just beating myself up.”