I too have Lyme disease, I've had it for 36 years now. It was not diagnosed for five years, so it became chronic, and no amount of antibiotic treatment was able to cure it. Dr. Prehn gave me the polymerase chain reaction test and said that the result was "equivocal," but ten years ago another PCR test proved that my belief that I still have Lyme disease--and not merely "post Lyme syndrome"--was absolutely correct.
(from Wikipedia)
I found Dr. Prehn to be rather conceited, condescending, and a total waste of the huge fees he charged. His treatment was just the same old antibiotics I had been prescribed by others, and similarly useless. Care to say what your experience of Dr. Prehn was like? It sounds like your symptoms are more severe than mine, although I have certainly had some pretty severe episodes in the past. You have my absolute sympathy.