It is undortunately all part of the mentality. If it is not his known lab, he does not trust it. I paid 200 eur for a stool test via a private lab and the gastro enterologist ordered the exact same test again saying 'i do not trust this lab'. These 'ordinary' docs are really a big waste of time, most of them. And even if his trusted lab would find something, which anyway they could not, what would he give me as a treatment, i do not even want to imagine.