Sorry Adventure-Dude, you were right in your last statement, depression is a symptom of an Illness and/or trauma, although many people use this and many other terms quite liberally, these days. Many of whom are being treated with drugs by their GP, when probably all they need is a good rest, and maybe some Theraphy.
As you can imagin this is a subject which does tend to upset me a great deal, upon reflection, you answer was actually guite sensitive, and I apoligise for flying off at you for your comment. I do agree with your brief comment, generally people who are suffering some form of stress, due to trauma or work or life in general, will suffer some form of depression, this in turn causes issues with self worth.
People with self esteem issues are long term suffers, generally suffering from a chemical imbalence in the brain, coupled with major trauma/s in their life, (eg: Molestation, or some other form of physical or emotional abuse), speaking from experience you do suffer from both, feelings of self worth, and very low self esteem, resulting in a lack of confidence and a general passivity in nature. Sadly for people like me, people who will expolit individules for sex or control, can pick this in a person, which is why people seem to find themselves in a situation where this happens with more than one person and on more than one occasion.
What I will say is for the life of me I cannot understand some people who would try to fake these conditions, because the treatments in no walk in the park, I personally have to take a large quantity of drugs just to be able to function at what is called "NORMAL".
I prefer to think of normal as being a setting on a washing machine.
However lately after my most recent stint in hospital (3 months), I do feel the best I have in years.