I know of several people with chronic lyme who have had that. I have not had that specific symptom myself. (and have had cfs due to lyme for 17 years).
Not sure if it is due to the lyme bacteria or could be from other infections. You might want to check out the lyme board here to get more feedback.
good luck. also, I have had great success with Hansa Center's treatment. Finally have my life back! You can google it for more info. I highly recommend for anyone with chronic illness. They have a great success rate.
CFS symptoms for 17 years, diagnosed with chronic lyme 3 years ago. now going through treatment re-vamp at Hansa Center. Have been doing plant stem cells, artimisinin, various natural supplemnents, cortef and thyroid. FIR sauna, ion footbath, acupuncture, detox baths.