Celine Dion was seen fighting back tears as she talked about her heartbreaking Stiff Person Syndrome diagnosis in her upcoming documentary, “I Am: Celine Dion.”

Radar Online reported that the famous singer spoke openly about the pain caused by her diagnosis, saying what she misses most is performing for her fans.

Since her health issues became public, Dion has stayed out of the media spotlight. Many doubt if she’ll ever be able to perform again.

Earlier this year, she made a few appearances, including presenting an award at the 2024 Grammys, which gave fans hope. However, it seems she is still not ready to return to the stage.

She had to cancel all her world tour dates for 2023 and 2024, showing just how serious her condition is.

In a new trailer for her upcoming documentary, released on Thursday, Dion is nearly in tears as she talks about not being able to perform as she has for decades.

“I am working hard every day, but I have to admit, it’s been a struggle. I miss it so much. The people. I miss them,” she said.

Despite her struggles, the 56-year-old is determined to get back to performing, no matter what it takes.

In a powerful statement, the five-time Grammy winner promised she “won’t stop.”

“If I can’t run, I’ll walk. If I can’t walk, I’ll crawl,” Dion said. “And I won’t stop. I won’t stop.”

“I’ve seen my life, and I love every piece of it,” she added. “It’s not hard to do a show, you know. It’s hard to cancel a show.”

Earlier this year, on March 15, Dion gave an update to mark Stiff Person Syndrome Awareness Day.