Lack of sensitivity after having children?

I have been experiencing a lack of clitoral sensitivity during intercourse after having children. Mind you, it's been 11 years since I've had my last child. Does any other ladies have this problem? Have you found any products that help in this area other than vibes or masturbation?

I'm making this a private poll as this is a sensitive and private question for those who don't wish to disclose any products that has helped them.