I forgot to add that in Australia, a doctor can refuse to have you as a patient any more. It can only be done under certain circumstances, such as the patient doing something illegal that interferes with their care, refusing to follow any of the doctor's advice, or being aggressive or unpleasant.
I am pretty sure that taking prescription medications without a prescription would be considered such a reason.
I can understand that they might feel it compromised the doctor–patient relationship, or that they couldn't give me proper care because of these extra medications that aren't being overseen by a specialist.
At the same time, I want to get better, and I seem to be on the right path. So unless I meet a very intelligent and empathic doctor, I'll be keeping it to myself.
(P.S. If I get very sick or go into hospital in an emergency, I will be honest, of course. Any my support person has the real list of my medications for such an eventuality.)