I have done it many many times. For some reason I minimize things that are bad. I will make sure I am showered and shaved and dressed good for the appointment when I haven't showered in over a week. He will say "your looking really good" when I am not good. Then I can't really remember how I was a week or so ago or I forget what I really wanted to say. It ends up with the Pdoc getting a false impression of how things are. Sometimes we might have a good reason to lie but they can't help us unless they know the truth.

The way I solved this was to keep a daily mood log. At the end of each day I type out how the day was, what was my mood, what did I do, etc. etc.

Then on the day of the appointment I print it, bring it in and let him read it. The log doesn't lie. He gets the true picture this way and it keeps my records much more accurate.