Celine Dion has Stiff Person Syndrome, a rare neurological disorder. Here's a timeline of her condition.

• Celine Dion performed at the Paris Olympics, her first live show since sharing her health condition.
• Dion has said that she first felt the effects of Stiff Person Syndrome in 2008.
• Here's a timeline of her health updates before and after sharing her diagnosis in 2022.

Celine Dion first noticed her Stiff Person Syndrome symptoms in 2008 while on her "Taking Chances" world tour.