I don't know where you heard that or what tests were done. I have had BMS for 8 years. Originally I had every test in the book. My husband is a surgeon so I got the most thorough work up available to man. They finally ruled everything out. Also, I am one of those freaks that has a natural immunity to viruses. I have never even had a cold sore.
What clued them into the cure was the fact I had mild polymyasia and Raynaud's disease. Both neurological disorders. So I started taking Lyrica and OH JOY. Problem solved. Now I am down to 300mg of Gabapentin a day and have never felt better.