I recently went to my doctor because I've been unable to lose weight. I've been on a successful diet, accompanied with a reasonable exercise plan, but I've seen no real results. A series of tests were run — I've got optimum blood pressure, low cholesterol, and I am not diabetic. But, when my cortisol levels were checked — they were very high. The doctor suspected there was a possibility that I might have Cushings' Syndrome — but another test was run and that came up negative.

I was doing research on the internet, and I found that there was a link between excessive cortisol and depression. I was diagnosed with clinical depression when I was 12 (I am now 21). And I am currently untreated. What is the link between cortisol levels and depression? Are excessive cortisol levels a physical manifestation of depression? Or does an excess of cortisol for some other reason cause depression? Does an excessive amount of cortisol cause weight gain, or in my case prohibit weight loss? And if there is a connection — will treatment for my clinical depression (in the form of prescription pills) help me?

I've been unable to find answers anywhere, or at least a good source to tell me to stop worrying — any help would be appreciated.

Ever since I was in junior high, I have been pulling out my hair. I can remember not being able to pull my hair into a ponytail because the hair at the nape of my neck wouldn't reach. I still have this awful and shameful habit. I don't see it so much as just a habit, like the way one might bite one's nails, it's more like an obsession. I'll just sit and stare into space and pull clumps of hair out of my head. I remember having seen a program on T.V. which dealt with this habit as a medical problem that is curable with medication. Unlike the men and women represented on this program, I am not stripping myself bald — yet. I tend to consider it a form of self-punishment, perhaps. Just to give you some background information, I have a tendency towards bulimia (cycles of bulimia occur when my depression is at its worst) and am in general not a happy camper. What can you tell me about this?