There are essential differences between western medicine and Chinese medicine. Western medicine pays attention to essential diseases, while Chinese medicine pays attention to human symptoms. If you have symptoms but no pathological changes, and the instrument can't detect them, then western medicine will say that you are not sick. Chinese medicine will treat you according to your symptoms, such as your low fever. If there is nothing wrong with the instrument, then western medicine will say that you are fine, while Chinese medicine may think that you are yin deficient (in layman's terms, your metabolism is too fast and your consumption is too high) and let you take Liuwei Dihuang Pill, Baizhi Dihuang Pill and Dabuyin Pill.