Possibly a stupid question, but are you having a menstruation cycle, and if yes, are you tracking it? I was not able to infer the likelihood by your previous responses…
I’m asking because a certain amount of being high energy before and during ovulation, and more down between ovualtion and menstruation is very common, with some people having more severe bodily symptoms (PMS) in the down phase, and there is also a supercharged version of PMS with mainly depression like symptoms, called PMDD. It’s caused by a sensitivity to hormonal changes and can develop at any point in life. The monthly cycling sounds a lot like it.
(Possibly not applicable to you, then please ignore it, but maybe useful info for others).
Just wanted to let you know - I am currently examining my anxiety and exhaustion generating work and study habits hard (and why they are so easy patterns to slip into), and your post helped me answer a question I had and couldn’t quite grasp.
Because for me, I generate The Dread© by imagining the disappointment of my professors, my boss, or parents, or whoever gave me the task or has a stake, if I don’t do it in time. Which also means that I can’t really do stuff for myself unless I imagine my therapist being disappointed or something. Which leads to weird and unusual attachments to people who have no idea of their significance, and a LOT of social anxiety.
But knowing the functionality of this pattern should be quite helpful in gently disengaging from it 🙂 So thanks!