Post-Treatment Lyme Disease Syndrome (PTLDS): For the purposes of this study, PTLDS is defined as occurring in male or female patients age 13 and above who have been diagnosed with confirmed or probable Lyme disease per CDC definition (https://wwwn.cdc.gov/nndss/conditions/lyme-disease/case-definition/2017/). Studyphysician will review history to confirm probable cases. They have received recommended antibiotic therapy and have persistent or relapsing symptoms and/or signs for at least six months after therapy. They also should have no other documented explanation for their signs and symptoms.