Miss A, you mean that admitting to yourself that you're depressed makes you feel more depressed? I think I can understand. Somehow admitting to it makes me feel like a bit of a failure for not being "perfect."
I know being on medication makes a big difference for me, even at a modest dose, but there are a few unkind people that I still have to deal with who think people that need medication for problems of a psychological nature are defective and don't deserve to be treated fairly. If you deny the problem and don't take medication, that's OK, but as soon as you admit it and get help, you're open for any and all attacks, especially if they don't care for you much to begin with. It just gives them one more piece of ammunition.