How are you getting checked? I understood (perhaps wrongly) that the blood tests are only accurate well beyond the window with which the medications are effective, creating a chicken and egg issue.
I went to the doctor, she said the tests at this phase are unreliable, my bite could be Lyme, but could be something else too (the bulls eye rings didn't form yet). She said the pragmatic approach is too treat it as if it was Lyme and take antibiotics. It's better to take some antibiotics than wait for the symptoms (which are not always easy to assign to lyme).
Other practitioners use westernblot lab results and differential diagnosis.
They claim it can be cultured too.
https://www.frontiersin.org/articles/10.3389/fneur.2021.6280...
Check out also Dualdur, received 3MEur from EU in 2018.
My relative didn't find out, until he had a cantaloupe for a kneecap. They tested the fluid, and found lots of Lyme.
He's always getting bit. Deer pass through his backyard, on a regular.
He said the treatment was anticlimactic. A course of oral antibiotics.
The CDC warns against nonstandard testing: https://www.cdc.gov/lyme/diagnosistesting/labtest/otherlab/i...
You'd be surprised how little regulation that some lab testing gets: https://sciencebasedmedicine.org/new-fda-regulatory-role-thr...
There are a lot more predatory labs than Theranos out there...
The frontiers study shows bacteria persists inside the brain.