Dry heaving while smoking may be related to pregnancy, but gastritis, pharyngitis, esophagitis can also cause dry heaving while smoking. The causes of smoking dry heaves more reasons, women pregnant body hormone level change will appear early pregnancy reaction, some women will appear smoking dry heaves, such as delayed menstruation, stomach upset, etc., can go to the hospital in time to draw blood or use early pregnancy test paper for detection. If you are sure that you are pregnant, you should prohibit smoking and alcohol, which can avoid smoking leading to fetal malformation. Smoking dry heaving accompanied by stomach pain, stomach bloating, diarrhea, etc., is considered to be caused by inflammation of the gastrointestinal tract. Long-term smoking will cause damage to the gastric mucosa, resulting in the formation of chronic gastroenteritis, which will cause patients to experience stomach discomfort, pharyngitis patients smoking will cause stimulation of the inflammatory parts, will also appear in the throat area discomfort. Patients with reflux esophagitis will lead to the reflux of gastric solutes into the esophagus, and the stimulation of smoking will cause gastric discomfort, nausea and so on.