The actress had to wear a badge to tell fans why she remained silent on the show.

"Sometimes people, fans, thought I was being rude because I wouldn't say anything. I would just be like this (making a pose)," she said on 'Late Night with Seth Meyers.'

"So then, I thought, OK, let me tell people what's going on and that way they'll have sympathy for me instead of hatred."

The actress said: "Okay, well, so, she's a robot. And she goes through this journey of, I guess, what we would call humanity, like empathy."

"And so, at the beginning of the movie, I chose this kind of super positive voice. And it wasn't in my local register, which is very low."

“And so, I did it for several days for a very long time, and I got a vocal polyp. And so, I lost my ability to speak. And my doctor put me on vocal rest. I was on vocal rest for three months."

The actress wanted to avoid surgery, especially after her doctor told her that 35 percent of people heal naturally, reports femalefirst.co.uk.

"And I was very determined to be part of that 35 percent. And I did. I cured myself," she said.