Your entire medical/mental healthcare team shares your file information. They can only however discuss your health situations amongst themselves - unless you have given them permission or unless you are under the age of consent (at which point they can discuss your care with your parents/guardian).

For example, you have a personal medical file with your family doctor. This file will include correspondence from your therapists and psychiatrists regarding their care. Similarly they may have discussed your care looking for possible physical reasons for your mental ilness. Anytime you have an encounter with a healthcare professional there will be a record of this on your file.

Similarly, your file at your psychiatrists office will include correspondence from your therapist regarding your progress, diagnostic information, and ideas regarding a mental health plan even including medications. Your family doctor too will correspond with your psychiatrist about conversations had in their office that maybe critical to handling your mental health.