Dr. K is also very circumspect - there is evidence that I would do well on a particular antibiotic, and that I have underlying bacterial infection (in addition to others). But Dr. K is waiting until I get some other testing first. He also thoroughly explains the reasons he wants to do a test, explains how it is viewed in the wider medical community, why he thinks it would benefit me - and he will not do testing without good reasons to do so (based on history, illnesses, etc.). He has helped my POTS with one medication (it is not gone, but it is helped HR). The LDN helped my digestion in ways I can't even describe. I could go on and on. I wish my brain fog wasn't brain cement and I could actually express what I want to, but I am unable to do so.