I think 'not feeling', or feeling numb, can be part of depression sometimes - or how meds might make you feel, almost like a zombie. I know I have been through stages of it, although I tend to feel more 'disconnected' with a layer of vague discontent

I don't know what you can 'do' with it, I'm not sure how you can 'make' yourself 'feel' anything... maybe this is something T can help you with?