Hi, @rarelybees2889 . I had seen this post on autoimmune disease and fatigue and just knew that it related to me. I have an autoimmune disease and am tired all the time, but I just didn’t have good info. Since then I have found some good articles about autoimmune fatigue. This one is pretty scholarly, but just glide through it and look at the headings: types of fatigue, sleep and circadian rhythm, and stress. It also states that much more research needs to be done. I hope this will be interesting to you!
https://www.sciencedaily.com/releases/2015/03/150323105245.htm