Well... I don't know as there is much of anything I can offer with regard to this. But I noticed no one had replied to this post. So I thought I would.
I guess I don't really know what extreme emptiness would feel like. Because of the various issues I've dealt with all of my life I have lived with what is, perhaps, something that may be similar? I guess I would call it confusion, fear, lack of "belongingness"... never feeling as though I fit in anywhere, never really having any real sense of who I am.
As I have written a number of times, here on PC, I learned very early in life (I don't know how) there were things about myself I must never talk about. And so I never did.
I also have to say I don't really know as it would be appropriate for me to claim to have been the victim of CEN. Way back when I was young, at least where I grew up, there was no such thing. Children were to be seen & not heard. We just grew up. And whatever happened... happened. It would never have occurred to anyone that there could even be such as thing as CEN. But, then, that could be said of a number of other things that have been relevant to my life as well.