If there is a history of menopause, smelling smoke and wanting to vomit may be pregnant, because after pregnancy the body’s hormone level will increase, so it will lead to gastrointestinal mucosa slightly edema, so there will be some gastrointestinal reactions. Due to individual differences everyone reacts differently, some people want to vomit when they smell cigarette smoke, some people want to vomit when they smell stir-fried vegetables, and others will want to vomit when they smell alcohol, so everyone reacts differently to specific substances. In this case, it is best to do an early pregnancy test, you can use morning urine to test, you can know whether it is pregnancy caused by this situation. If you are not pregnant, it is also recommended to go to the hospital to give the appropriate examination, you can go to the gastroenterology department to rule out the possibility of gastrointestinal diseases, according to the symptoms of the doctor to recommend what to do the examination, and then can give the final diagnosis.