You don’t, and you shouldn’t trust someone who doesn’t do testing, or do the right testing. There is specific number of positive tests needed for a diagnosis of CIRS, with published research papers supporting that. But consider this — if you’ve seen 12 specialists, they’ve ruled out a lot of diseases. They’ve run the tests to check for what they thought you might have. But what if they are unfamiliar with CIRS, and the tests needed to confirm the diagnosis? They won’t run them simply because they don’t know them. You don’t have to trust us to be “right” — you just need the tests run by a certified CIRS practitioner and the confirmation of the diagnosis from those tests.