Hi Zach. Emotional numbing is a completely normal thing when experiencing dp, some people have a partial numbness with anxiety, or you could be in a totally numb, shutdown state with no anxiety or stress at all, which would be a full freeze response basically.
I used to have anxiety and partial emotional numbness at times, but now I'm completely numb to any emotion now or any sensation in my body like fear, just totally nothing, have been for about a year now, total blankness, total frozenness after lots of trauma and hardship in my life. I can't socialize or connect with other people, can't naturally have any facial expression whatsoever, no personality, no anything, just being a conscious human basically. I haven't found a way to start feeling again and it's really quite a miserable hell. I've been told by my therapist that this is a response through what's known as the dorsal branch of the vagus nerve. It completely numbs you and immobilizes you when you feel there is no way out, no chance of survival.
Idk if you're experiencing the same exact thing, and I don't have the answers, but I really hope you're not like me and start feeling again soon. How long has this numbness been going on? Xx