@creative_writer that's awesome about your supervisor, I'm really glad to hear it! It helps soooo much to have other folks around with ND traits. Hope it also means communication will be easier!
Seems to be a confluence of factors hey! Would it be worth maybe chatting to a gp about it, see if there's any insights to be gained? Sounds like the absence of light is a factor too. Could it also be something related to your childhood? Like if your home life was super challenging, school may have provided relief from that and thus created an association that day time was safe, night time was tumultuous. All just ideas thrown around and may not be the case, but it sounds like it's playing on your mind, this pattern.
I am about to log off so I'll bid you adieu, but we can continue delving into this tomorrow if you're keen. Nighty night hun 💜