"I know what it's like to wake up and be in agony in your own skin," she tells LESLEY STAHL on Sunday's edition of "60 Minutes," airing at 7 p.m. on CBS. It was when she was in her late teens and into her 20s that Felicity battled with both bulimia and anorexia.
The Golden Globe nominee admits to starving herself to look thin for some of her earlier roles and also reveals she entered therapy to help with the problem.
On a lighter note, Felicity also talks about how after more than 20 years in the business and dozens of films under her belt, she's finally getting spotted on the street, thanks to the success of "Desperate Housewives."
"The last month people have recognized me," she says. "It doesn't happen that often."
Felicity also opens up about motherhood, her childhood and her relationship with her and her ABC cast mates, which has been the source of many headlines since the show began in 2004.
For more on Felicity, watch tonight's ET!