The first symptom is depressed mood, such as feeling depressed, or not paying attention to the things around her, or the environment, and not being able to lift her spirits, etc. There can also be psychological reactions such as frustration, disappointment and pessimism. The second symptom is hallucinations and delusions, such as being loud or angry, or even cursing or hurting others. The third symptom feature, memory can be decreased, that is, can not remember things, or even just remember things, but will soon forget, no confidence in themselves or afraid of challenges, etc. The fourth symptom can cause adverse reactions in the digestive system, such as anorexia, nausea, vomiting, constipation, etc. In more serious cases, the person may go on a hunger strike.