FX’s The People v. O.J. Simpson: American Crime Story was a huge ratings hit and received 22 Emmy nominations, but one of the show’s stars said watching herself in the series made her “physically ill.”

Sarah Paulson, who played prosecutor Marcia Clark, admitted that she has not watched the entire series but the little bit she did she is what made her sick.

While at the show’s Television Critics Association panel in Beverly Hills on Tuesday, Aug. 9, the 41-year-old talked about what she did see and how it made her feel.

"I haven't seen any of it and I just saw a little bit of that verdict," Paulson confessed. "It literally made me physically ill. I thought I was going to cry and I was going to throw up."

The actress went on to explain that she felt the way she did because of how connected she was to the famous prosecutor and how difficult it was portraying her losing that case.

"I felt very, very connected to her and to watch her lose it is somehow separate enough for me – and yet I feel inside of it," Paulson said. "I didn't really think of her as a human being. I was just trying to honor what was on the page. Of course it changed the way I thought about her.

"I feel like it changed me molecularly in a way. Who I was when I came into this and who I became when it was over has changed."

You can check out our exclusive interview with Marcia Clark about what she thought of Paulson playing her in the series and much more.