For starters, if your symptoms have lasted for at least two weeks, then consider clinical de- pression rather than a bad hair day. Sex drive plummets. You may feel it's not worth it to go on. The hallmark of clinical depression is the total elimin- ation of your capacity to enjoy anything. Often, the sleep and appetite difficulties are present.
Concentration can become very problematic.
It can come out of the blue for no good reason. To contrast a clinical depression with a situational problem, consider that with a situational problem, you could be exper- iencing some anxiety, some sleep difficulties, maybe you lose your appetite. One difference between this and a clinical depression is the duration of the feelings. Usually a situational problem lasts a few days or a week. Clinical depression lasts at least 2 weeks.