Jessica Chastain didnt hold back when she was asked to reveal the worst thing that happened to her while performing in her latest Broadway play, A Dolls House.

I can say it now, cause were closed, Chastain said this week while appearing on the SmartLess podcast .

This is really gross, what Im gonna tell you guys, she prefaced her comments, before telling the hosts that she threw up while onstage.

I threw up and I swallowed it. And no one knew! the Oscar winner said, adding that she was sobbing when she just leaned over and it happened.

Unfortunately, Chastain later had to kiss someone during the show.

It was a nightmare and I couldnt explain, the Interstellar star continued. She said she turned the productions normally sensual kiss into a much more subdued peck.

That night it was definitely a closed-mouth kiss, she said.