I developed internal vibrations when I was on abx for Lyme. They occurred mostly in my left knee, sometimes my left ankle or both....and occasionally in my right flank.
They improved with treatment but I'll still get an occasional quick "buzz" in my left knee as part of a herx on my current protocol.
Since you are taking meds that address both Bartonella and Babesia, I'm inclined to think that the symptom would be exacerbated as part of herxing.
Increasing detox and sustaining that level can only help. Perhaps you might incorporate some new methods based upon the suggestions listed in this site:www.tiredoflyme.com/detox-methods.html
And, if you're inclined to take any herbs, Buhner recommends several different ones that help with neuro issues:
Hope you feel better soon!
Moderator - Lyme Forum
Jul 14 started what proved to be inadequate treatment ala PCP day after nymph deer tick bite
Sept 14 met LLMD - clinically dx'd with Lyme due to Bells Palsy - confirmed via CDC positive WB
Feb 15 transitioned off abx and started full Cowden protocol along w/LDN
July 15 started transition to Buhner's Lyme, Babesia & Bartonella protocols
mild PNS symptoms except when herxing