In the first trimester of pregnancy, nausea, vomiting, loss of appetite, drowsiness and weakness are normal pregnancy reactions and do not require special treatment. However, this reaction will stop naturally in the third trimester. If you are pregnant for more than three months and vomiting occurs, you may have indigestion or diseases such as gastritis, duodenal ulcer or gastric ulcer, so you need to go to the hospital for examination to determine. If the symptoms of indigestion are confirmed, you can take some drugs to help digestion, such as lactase or stomachic tablets, if vomiting is more serious, you can take vitamin B6 treatment. During this period try to pay attention to a light diet, do not eat too greasy, poorly digested food, to avoid aggravating the burden on the stomach, resulting in vomiting symptoms aggravated.