Many of us here have had periods or moments that they doubted a lyme or coinfection diagnosis... I too have them, although that my tests came back positive, that my CD57 is very low and despite of the huge list of symptoms I had for more than 18 years now...
I think that lots of us have been 'abused' (that's how I call it) by doctors for such a long time, that we started to doubt ourselves... it even makes us doubt our gut feeling...
My intuition usually is spotless, but I doubt my intuition when it's about my infections...
When I start doubting my disease, I just blame it on the Lyme/Bart... - lol - these infections have had a huge impact on my mental state...