Sepanxiegender

 is a gender affected by having Separation Anxiety Disorder.

Etymology
"Sep" presumably originates from "Separation", and "Anxie" presumably originates from "Anxiety" or Anxiegender, however the coiner never specified.

Definitions

 * sepanxiegender: a gender affected by having separation anxiety disorder! - Nico of Pupyzu, 2021

Flags
The Sepanxiegender colors were picked from the Anxiegender flag, and Neopronouns Separation Anxiety pride flag