I have cfs, reynauds, fibro, narcolepsy w/insomnia. I now learn that they all may be autoimmune. What tests and what viruses can I expect? Inherited/gen

Only Raynaud's. Only raynaud's could be secondary to an autoimmune disorder. Cps, fibromyalgia and narcolepsy are not autoimmune. I seriously doubt your cfs diagnosis if you indeed have narcolepsy with insomnia.
Genetics to autoimmu. The link that most have invovled is the hla typing. Specifically hla b and d types. This is a blood test. Other testing can be done on spinal fluid but less accessible.