Labeling is not always the accurate thing to do. My EX-Presented with many behaviors that seemed narcissistic to the point I thought maybe.....but in reality when I was directed toward a different possibility & did my research those behaviors fit many different possible labels & yes what I figured out what I had been dealing with for so many years....the research books said YES, their behaviors from that condition can manifest themselves as narcissistic characteristics.
Bottom line.....as Divine said.....it is better to focus on behaviors & the red flags they should be causing so you can learn to counter. We need to be proactive against behaviors rather than labels