The symptoms of mild nausea throughout the day may suggest a number of diseases. 1, slow gastritis. Normal people who eat grains and cereals will have the performance of chronic gastritis, but some people can have the symptoms of nausea, it is recommended that you can do a good job of abdominal warmth, pay attention to hot compresses. If necessary, you can also follow the doctor’s advice to take oral acid suppressant stomach drugs, such as omeprazole, aluminum magnesium carbonate tablets, etc. 2, reflux esophagitis. The stomach contents will flow back into the esophagus, nausea, often accompanied by acid reflux, heartburn, throat discomfort and other sensations, it is recommended to take oral acid suppressants and gastrointestinal motivational drugs to treat. 3, anemia, fever, colds and other diseases, there will also be mild nausea symptoms, because these diseases cause abnormal gastrointestinal function and appear.