Seek Chinese medicine first, but western medicine can't cure it well. A situation like yours needs to be "cultivated", and it can't be solved by hanging some water. So, look for Chinese medicine. Drink more water at ordinary times. In food, eat more tremella, ginkgo, lily, peanuts and walnuts. There is a saying in Chinese medicine that "dirty is used to make up dirty". That is, what you eat supplements what you eat, if it is really a lung problem. It is recommended to eat more pig lungs. Cow lung, sheep lung, etc. Being fat is a process. Don't worry, pay attention to rest and exercise.