I know for me the best way of addressing that was to really understand that a doctor can't serve you at all well, or help heal you, if you aren't as truthful as possible.
I think it's also helpful to shake off the stigma attached to depression and understand that doctors already have: they know full well it is a medical issue, a medical problem, and that they can offer solutions if you let them.
Might be worth thinking about what you have in your mind as the worst that could happen if you ARE truthful. Maybe you're worried you'll be labeled a nut, maybe you're worried the doctor will dismiss your concerns and symptoms, maybe you're worried you'll be told it's all in your head. Those are valid worries, things like that, but not as important as taking a chance to be well, healthy and whole.
And those scenarios are pretty unlikely. If they ever did actually happen, they would be because of a crud doctor, not because they were so.
Editor and Founder, Scarleteen
My epitaph should read: "She worked herself into this ground."
-- Kay Bailey Hutchinson