Hi janieg
If your new PCP had bothered to ask the question properly instead of just insinuating that self-diagnosis isn't useful then your answer may have been: 'yeah just me - after researching, observing and testing'.

I hope as he/she gets to know you better they might learn to accept that some patients know how to manage their own health.
Thanks for the link to the article - I wonder what implication it may have for medical systems that currently rely only on the HBA1c test as an indicator for diabetes.