A question for neurodivergent regressors

How closely tied is your regression to your neurodivergence? It's been on my mind a lot lately, because I've been trying to unmask recently when possible, and I've noticed that my little side is coming out more as well when I do so. I wonder sometimes if I'm regressing because of stress and my neurodivegence, or if my being overloaded/shutdown- mode just looks like regression. I mean, I don't just regress when I'm overloaded, and sometimes I know I don't feel like 'adult' me, but is that regression or is that just me letting the walls down and just letting me be me? I sometimes feel very much like 'adult' me is a mask that I put on.