A belated welcome Wilster!
I join the others in questioning your LLMD's confusion about
your current issues - they are so very common with these infections.
And, the testing for the coinfections is less reliable than the tests for Lyme which makes a clinical diagnosis vital.
Dr. Horowitz mentions that, if nervous system issues predominate, to think Bartonella. I'm surprised you haven't heard that speculation from your LLMD.
I'm also surprised that your LLMD has you off abx to see how you do. That's not what ILADS recommends. They recommend treating for a full two months after complete resolution of symptoms.
And, to really muddy the waters, it's possible you might be dealing with an asymptomatic babesia/babesia-like infection that is impeding your healing from Lyme, etc:
dermnetnz.org/arthropods/babesiosis.htmlWhile my LLMD never thought I had Babesia and still doesn't think I have it, he has supported my decision to trial Buhner's Babesia herbs since I just couldn't shake the PNS issues that have plagued me since being on abx. I'm finally improving.
Perhaps some of this resonates with you and will prompt you to have a meaningful conversation with your LLMD.