I completely recognize that feeling. Lately I have been feeling totally empty and devoid of feeling.

For me the cause it is probably just that I have been let down and hurt by so many people so many times that my brain seems to want to automatically block out any emotional responses to prevent heartbreak. The numbness is a weird feeling. It feels good not being able to even hurt anymore but bad because on the inside I know I am truly broken.

It sucks losing interest in things you used to love though, it painful because you know you want to do them but its almost as if you physically cannot. Hang in there!