I think in your case it warrants an borrelia elispot test from an up-to-date laboratory and a seperate HHV6 test if that is what you think you may have.
My nutritionist does think it is plausible for these coinfections to take hold and stay in the body for many years due to the immunosuppression from the borrelia. So I could have one or more of those coinfections, and that could be the reason for my ill health; even my EC.
Very worrying that the basal range you mention from your records is considerably different to my lab's reference range. I suppose there may be some discrepancy between the prescribed ranges from lab to lab but not by that much!