From what i have been hearing NPD is so selfish that its hard to produce empathy if that will interfere with your needs. The real test is when friends. loved ones are ill.
I got a 50% rating on an online test for NPD. yes i am a perfectionist in my science and creative projects, but not at all with people. Its mostly free and easy. If somebody i like never mind love gets ill it shakes me up. I get depressed, have sleep problems, am tearful. Drop everything to try to help them. And not for others to see. I am not motivated by what others think of me. My life gets totally derailed if a friend is ill. I start questioning life, meaning etc and come out the other end a different person.
Eh how can i have NPD with that process... two online tests give ma a 50%.