VIDEO : How James Gandolfini Helped Jamie-Lynn Sigler in Her M.S. Battle

Jamie-Lynn Sigler isn't about to say her fight against multiple sclerosis has been easy. But, as the 34-year-old actress told E! News' Maria Menounos exclusively at the NBC Experience Store, living with M.S. is "a fight, but you'll feel better and stronger for it." Jamie-Lynn hasn't faced this battle alone, though?she drew support from family, friends and co-workers, including her late Sopranos co-star James Gandolfini. Sigler, who played Tony Soprano's daughter Meadow, said he was one of the few colleagues she told about her diagnosis. She described him as being very "caring and supportive--like a dad."