wrote:
My instant ones would be to aim to sleep 7-8 hours instead. It will of course take a few days to get used to sleeping less, so then it's normal to be more tired for a handful or so of days. Stretch out in the morning after you wake up, just very light movement since you get easily tired. Eat and hydrate properly. If you have a lot of worry\thoguhts in your mind, that's going to zap your energy too.
That's really just all I have, but since it sounds like you have a condition no one has figured yet rly, I don't know how much help there will be. Since you're on very few options, have you considered making a reddit listing the symptoms and asking if someone recognizes it? You can't be the only one with this.