There are many Chinese patients says the disease is caused by failure HIV Vaccine which made by Gene engineering Pox Virus. I don't believe that before but now I found in my result of mNGS there is 2 Pox virus and 1 unclassified retrovirus. I now believe that it possible.
Because many patients of HIV they don't have seriously symptoms but CFS patients are very very difficult and many symptoms. If only retrovirus don't be like that so uncomfortable. The reason is the vaccine keep duplicating and let immune system keep working so we are very tired.
You can got to check mNGS to see if you have some vaccine vector virus.