I found bringing my Vit D and B12 up to snuff made me feels tons more energy. rest helps. Its a matter of making your day into manageable portions. If I am going shopping, I skip my walk. If I am going to be in the heat, i get very cool before hand, and having cooling measures in place for during. I make sure i am IN bed at a reasonable hour, even if not sleeping, at least I am resting.

Be careful about burning up all those sick days. They are valueable, and if you ever need steroids, you are gonna wish for one.