It lasts for at least 2 years and often more than 5 years. Symptoms usually aren't disabling, and periods of dysthymia can alternate with short periods of feeling normal. Having dysthymia places you at an increased risk for major depression and suicide. Because this condition involves emotions at both extremes, or poles, it's called bipolar disorder or manic-depressive disorder. Mania affects your judgment, causing you to make unwise decisions.
Some people have bursts of increased creativity and productivity during the manic phase.
The number of cycles at either extreme may not be equal. Some people may have several cycles of depression before having another manic phase, or vice versa. Seasonal affective disorder. It may cause headaches, irritability and a low energy level. Many people with depression have symptoms of anxiety as well.