Nicole Kidman’s Heartbreaking Announcement–We Feel SO Bad For Her!

Kidman explained that this is a frequent problem she encounters when taking on a new role.

"Even on The Undoing it kind of happened where I just was like suddenly, I was in this place, there was sort of a disquietness to my personality where I was uneasy, and there was duress on who I was," she explained.

She had a similar experience during Big Little Lies.

It even took a toll on her physical wellbeing.

The actress explained, "I actually got really sick, and I think this is a big thing that happens to actors. I went down for a week because your immune system doesn't know the difference between acting and truth when you're doing those."

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Kidman believes that this happens because her roles often follow her off set.

She explained, "I have not learned a technique to tell my brain and my body, 'Oh this is just acting.'I haven't learned how to clean that out."

It even affects her sleep!

"I go home, and I don't sleep well and I'm not well if it's that disturbing to me," she explained.

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