I agree with Genetic!

A family history shows up a lot in folks with bipolar. There seems to be a genetic component. I take medicine and see a therapist ever since I was diagnosed 12 years ago. I think most everybody does believe that at least taking a mood stabilizer is needed for official Bipolar Disorder--but you must be diagnosed first. Also, read all you can about it. Other aspects in life are important, too. And STRESS definitely can help bring an episode on!