Celine Dion is giving fans a raw look at her life with stiff person syndrome.

In a newly released documentary, the iconic singer suffers a frightening medical crisis during a physical therapy session, and it was all caught on camera.

In 2022, Dion revealed she had been diagnosed with stiff person syndrome, but in her new documentary, I Am: Celine Dion, the singer shares she had been dealing with symptoms of the rare, progressive neurological disorder for 17 years.

“I need my instrument. And my instrument was not working. So we started to elevate the medicine,” Dion, 56, said after experiencing difficulty hitting certain notes during her 2018 and 2019 tours.

Although she completed her 2018 tour, Dion was forced to postpone several dates from her 2019 tour due to the “common cold” before the pandemic shut it down.

Her tour resumed in 2022, but once again she had to continue canceling and rescheduling shows. It wasn’t until she announced her diagnosis that she officially canceled the rest of her appearances.

“I can’t lie anymore,” Dion says in the doc. “From a sinus infection to an ear infection to whatever. Sometimes I would point my microphone toward the audience, and I would make them sing it. There’s moments where I cheated and I tapped on the microphone like it was the microphone’s fault.”