Travel in Dali, Yunnan, and defecate four times a day.

Depending on your age, if you are not an elderly person, you can basically rule out altitude sickness. In 2008, relatives had such problems, which may be acclimatized. If you have diarrhea, take some laxatives and see if you can get better. Yunnan belongs to the plateau area, and rice is not easy to cook. See if eating raw rice will lead to indigestion in the stomach and intestines. If you don't pull the water or pull it after eating, it will take about 2 days to adapt.