Yes, I see a pattern emerging. I have been “off” since late November. I am a in a dense fog when I get up. It lasts for the full morning. I usually have about a 2 hour opening of thinking clearly, although I still have problems with planning, follow-through, sense of the passage of time. After my 2 hour opening, I am mentally done for the day. I feel exhausted.
As for fatigue, I am tired all day. I have no energy to carry out daily routines. When I tried walking as a way to increase stamina, I found that when my heart rate goes up, I get light-headed.
I have joint /muscle pain intermittently. It will keep me awake all night, then totally disappear. Same for getting into a standing position and walking with a straight back. Sometimes this problem lasts for a few days, then not at all.
I do see some progress in recent weeks. I had shortness of breath on minor exertion (making my bed). That is no longer an issue. I used to be out flat all day and all night. I am doing better spending time doing things around the house, although I need to lie down and rest frequently.
Thanks for asking the question. It has helped me realize that I am headed in the right direction. I hope you have the same experience.