I Dont Know Who I Am Anymore

I don't know what I'm doing anymore. I feel like I'm just going through the motions. My husband and I are having problems (due to my own personal issues) and I just feel like there is a void in my life. Growing up I never saw my life this way. My husband keeps asking me what's wrong and can he do to help, but I don't even know what is wrong or what to do.