I always want to vomit these two days, and my menstruation has been delayed for four days. When I see greasy food and can't eat it, I always think.

Honey, you may be pregnant. Your symptoms are all early pregnancy reactions:

Early pregnancy reaction refers to a series of reactions such as the increase of chorionic gonadotropin (HCG), the decrease of gastric acid secretion and the extension of gastric emptying time in the early pregnancy (about six weeks after menopause), which leads to dizziness, fatigue, loss of appetite, liking sour food or hating greasy food, and nausea and vomiting in the morning. These symptoms generally do not require special treatment. After 0/2 weeks of pregnancy, with the decrease of HCG level in the body, most symptoms disappeared naturally and appetite returned to normal.

I suggest you go to the hospital for examination in time!