Environmental factors such as stress, sleep disruption, and drug or alcohol use may also trigger manic-depressive episodes, so maintaining a healthy lifestyle is important -- proper nutrition and sleep, handling stress, finding a support network and psychotherapy can all help manage bipolar disorder.
The problem with using the word dramatic to describe my own expression of emotion is that I am not intentionally seeking out to attract attention. I have been consistently feeling emotions in an intense way for 35 years of my life. So it may be a jolt to you, but to me it is what it is like to live inside my brain every day. It's exhausting.