Is your family doctor not required to report disqualifying issues anyway? Here in Canada, our AIP states:
3.1.1 Mandatory Medical Reporting
Pilots are reminded that section 6.5 of the Aeronautics Act requires them to identify themselves as the holder of a pilot’s license prior to the commencement of any examination by a physician or optometrist. Section 6.5 further requires that the attending physician or optometrist notify the Minister of any finding that may constitute a hazard to aviation safety.
Section 6.5 also deems the pilot to have consented to the release of aviation-related findings by the physician or optometrist to the Minister.