She also suffers from Meniere's Disease which was diagnosed in 2007.
As such, she is prone to dizzy attacks which may have contributed to well-known falls during performances over the years.
• 2003: Fell off the stage during rehearsals for Wicked
• 2006: Fell off the stage during Broadway revival of The Apple Tree
• 2011: Fell down the stairs during injuring her back on the set of Glee.