Yes I have an undiagnosed autoimmune illness with Fatigue and joint pain that started after I had a bilateral mastectomy and reconstruction surgery. Everyone said it was a result of the cancer treatments and surgeries. I had Covid and took the Paxlovid and for the first time in 18 months I felt like my old self. My fatigue and joint pain were greatly diminished. I told all my Doctors..primary care Dr, Rheumatologist, my oncologist and my plastic surgeon. They were not able to draw any conclusions. I contracted Covid again about a month ago and had the same results while taking the Paxlovid. I have been trying to research why it mitigated my joint pain and fatigue. . I’m not sure of the mechanism in my situation, however, it makes me wonder if this antiviral medication which is designed to decrease the viral replication/load, therefore also would then decrease inflammation due to said lesser viral load and provocation, as C-19 causes immune response inflammation.