That sounds like one hell of a dichotomy to live with. I think that's why traditional Narcissists are so dissociated from how wounded they are(if that theory is at all correct, I'm playing devil's advocate here), they cannot hold that dichotomy of having low self-worth so they create this entire false persona along with a huge ego that Narcissists end up seeing as their true selves. Whether or not this theory is true will likely always be up for debate, but where I do see a grain of truth in it is that it's so easy to totally shatter a Narcissist's ego if you know what buttons to push(and sometimes people even do it without realizing it and then they're shocked by the "narcissistic rage" that follows). The fact that every Narcissist I've known has had such a fragile ego tells me that there is underlying insecurity, though I highly doubt 99.9% of Narcissists would ever admit to that.

It sounds like no matter what label you call it, you are aware of your issues. Maybe you should stop thinking so much about what label your issues would fall under and start working on ways to work through those issues since apparently they bother you enough that you felt the need to post about them. Labels have their uses certainly, but sometimes it's far better to just work with what's there and leave labels to the side. Usually by starting to work on your problems the issue of what label they fall under becomes far more clear as you gain more clarity by doing the work to make your life better both in inner experiences and outer experiences.