Quan sát những thay đổi mạnh mẽ về tâm trạng. Chú ý vào các thay đổi trong hành vi. Chú ý xem thời gian trạng thái hưng cảm và trầm cảm kéo dài bao lâu. Xem xét các tâm trạng và suy nghĩ của bạn để tìm triệu chứng hưng cảm. Đánh giá tâm trạng và hành vi để tìm các dấu hiệu của giai đoạn trầm cảm. Nhận biết về các dạng rối loạn lưỡng cực. Hẹn gặp bác sĩ.

Given the above summary, write a detailed text in English for it.
Bipolar disorder is known to result in very obvious mood changes to those it affects.  These mood changes will swing from being manic to being depressed.  How long these moods last and how strong they are will depend on how strong your bipolar disorder is.  If you notice extreme changes in your mood, you should visit with your doctor to discover if you might have bipolar disorder.  A manic state may make you feel extremely happy, sociable, and possibly irritable. A depressive state can make you feel sad, hopeless, and lose interest in things you enjoy. Bipolar disorder can result in changes to your behavior.  These behavioral changes will occur in tandem with any mood changes that bipolar disorder causes.  Behavioral changes can sometimes be more obvious than mood changes and might indicate a possible case of bipolar disorder.  In a manic state you may talk quickly, have excess energy, feel restless, or take reckless actions. In a depressed state you may feel tired, have difficulty thinking, or even have thoughts of suicide. Emotions that change over time or in response to life events are a normal part of life.  However, moods and behaviors that change without connection to outside events and last for long periods of time can be indicative of bipolar disorder.  Pay attention to how long your moods last and if they are connected to life events that might make you feel that way.  Manic or mixed periods only need to last for seven days to allow for a diagnosis of bipolar disorder. Some people may have a stable mood in between bouts of mania or depression. Depression that is related to bipolar disorder needs to last for only two weeks. For cyclothymia mild mood swings will last for at least two years. Mania is an excitable state that will last for at least a week and possibly longer.  A person who is in a manic state will likely be elevated, overconfident, and may begin many grandiose projects in a scattered manner.  Look for some of the following elements of a manic episode to help you identify a possible case...