@desea true true. But I do think looking at the introvert/extrovert thing as a spectrum.
For me I would really fit into the introvert box quite well. Atleast from "Energy"/Social Battery Type of Deal.
And how you much you need also to seperate it from other things like disorders that can conjure with introvertism but don't have to like social anxiety.
In the end its with like every label I guess. Do what is comfortable for you. But I dunno if calling the whole thing that is established psychologie is the best way to go about it.
Especially since I would not consider it harmful like homosexuality being called a disorder.
The spektrum is I think more about getting to know oneself and arranging with that.
Looking around there are also the less popular concepts of the Ortovert (not established) and Ambivert as well.