It's the third show in a row, you're working too hard," Dion told Kotb.
AdvertisementStiff-person syndrome is a disease that makes a person's muscles involuntarily stiffen and spasm, Business Insider previously reported.
Dion told Kotb that she once had broken ribs as a result of the condition.
Despite her illness, Dion told Kotb she didn't slow down her schedule to rest and seek treatment.
Advertisement"Lying for me, was… the burden was like, too much," Dion told Kotb.
Persons:
—, Dion, Today's, she's, Kotb, Celine Dion, Céline Dion
Organizations:
Service, Business, NBC News, Vogue France
Locations:
Germany