Presumably this is funded by tax payers?
As a tax payer, I would like to see an overwhelming burden of proof required of anybody that claims they need a financial subsidy from me to live their life. This particularly applies to people who have "illnesses" which cannot be diagnosed by a doctor.
It is notable that nobody has these illnesses in countries without a welfare system. IMHO the best treatment for any of these conditions is to encourage the patient to go and live in one of those places.