I also have low BP (90/60) usually. I just stopped Zhang's protocol after 6 months. I didn't notice a problem with my BP while on it. Maybe because I have been making an effort to stay hydrated. I don't think I was staying hydrated enough before because I also have bladder issues (I think they are also LD related).
2001 symptoms started:
Tingling in fingers and toes both sides, not tested at that time for LD
2007 Summer tested pos. WB, diagnosed with LD, tested neg for co-infections thru Igenex
Abx - Doxy 100mg 2x/day for 3 weeks (before diagnosis)
Amoxicillin 1gm 2x/day for 1 month
Amoxicillin 1gm 3x/day with Probenecid 500mg 2x/day 5 months
Currently on Dr. Zhang's protocol