Welcome Onetwofoureight!
Sorry for the reason you're here but glad you found us.
I, too, was given 21 days of 200mg doxy after the tick bite. My signature tells the rest of my story.
Please understand that mainstream labs don't properly test for Lyme and the tests for the coinfections are even worse. And, even the best labs can't necessarily confirm or rule out coinfections.
Reason being: there are more strains of these bacteria than tests available to confirm or rule out their presence.
Even the CDC says Lyme and its coinfections are diagnosed clinically - based upon symptoms.
That said, your symptoms sure sound like Lyme and Bartonella and possibly other infections. (tick saliva is like a salad bowl so it's unusual to get only Lyme)
Another option for finding a LLMD is to use the physician referral feature on the ILADS site (ILADS = International Lyme and Associated Diseases society that is cutting edge)
ilads.org/ilads_media/physician-referral/Without a doubt, please take Antonio's advice and work towards getting treated. It will make a world of a difference.
We'll be here to support you.