Hi Sarah, I phoned my doctor just out of curiousity and came up with the following. Anything you say between your doctor and you is off limits for CF recruiters, unless you sign a release form allowing them to pull up records from your doctor or psychiatrist's office, etc. So if don't bring it up and haven't signed any release form then they cannot know about what happens behind those closed doors. Even if you were in counselling for two years, if you didn't sign a release form, it shouldn't be known by them.
However, your record of prescription-medecine taking is fully accessible by the CF, so the recruiters can derive form that information what they will.