It seems like for several weeks out of the year, I'll suddenly go into what I call shutdown fatigue. It's like sudden gonna fall asleep sitting up fatigue where I could sleep and sleep for weeks and usually end up doing so. It's different from the usual year long stuff. I'm usually in a chronic state of mostly housebound. But I can be semi functional at home. This is different. And I'm going through a bought of it now. Came on suddenly, and I could sleep and sleep and can barely stay awake. Nothing really seems to trigger it, it just happens. And then I'm useless for a few weeks. Then it seems to abate on its own. It's very strange. But for me, it seems to be a part of this disease.