CFS with POTS

I am doubtful that my dysautonomia is from Lyme as I had negative lyme titers done three times over a five year period. Never had a rash. I am of the belief it is from a chronic immune reaction to Epstein-Barr infection. I also had Hodgkin's Lymphoma and finished treatment about a year before onset of my dysautonomia, so some of my doctor's blame it on peripheral neuropathy from chemotherapy. I think the common link among Hodgkin's, chronic fatigue syndrome, and dysautonomia is Epstein-Barr. Would be grateful to hear any other ideas.