There are many types of depression and only a Doctor can identify which one you have. For your information, here are some of the depression disorders. I hope this helps you.
Mild or situational depression
In mild or situational depression these symptoms ebb and flow and eventually lift. They are usually appropriate reactions to an identifiable cause, such as going through a major life transition, experiencing a crisis, loss or trauma, or placing too much physical stress on the body. Women also often experience post-partum depression or depression as a symptom of premenstrual syndrome (PMS). Many women are affected by seasonal affective disorder (SAD), in which their symptoms of depression consistently follow a seasonal pattern.
Major depression is characterized by symptoms that affect a person’s work, sleep, eating habits, and interest in activities he or she once enjoyed. Episodes of major depression can last for six months or more. To be diagnosed with major depression, a person must have several of the symptoms noted in question 3 LINK on most days for at least two weeks. People with major depression may have just one episode of the illness, but more often the symptoms return several times during their lifetime.
Dysthymia is a low-intensity mood disorder characterized by similar but less severe symptoms than major depression, but the condition is longer-lasting (the symptoms must be present for two years to receive the diagnosis). While not totally disabling, dysthymia makes it difficult for a person to feel good or function normally. Many people who have dysthymia also have periods of major depression.
Bipolar disorder, which is sometimes called manic-depressive illness, is much less common than other types of depressive disorders. It is marked by cycles of intense highs, called manias, followed by intense lows, or depressions.
Other common forms of depression include:
Postpartum depression is depression after the birth of a baby. Between 10 and 15 percent of women who give birth are clinically diagnosed with this form of depression. (Postpartum psychosis, which is sometimes confused with postpartum depression in the media, is a rarer and much more serious mood disorder that requires immediate medical care.)
Premenstrual dysphoric disorder (PMDD) refers to depressive symptoms that occur about one week prior to menstruation and disappear after you menstruate.
Seasonal affective disorder (SAD) occurs during the fall-winter season and disappears during the spring-summer season. It’s likely due to lack of sunlight.