Sometimes if you see others vomiting, spontaneous people also feel like vomiting, nausea and follow-up. Does this indicate that vomiting was contagious?Vomiting is a sign of the condition of the body that do not fit. Many diseases are characterized by symptoms of vomiting. Still vomiting is not contagious, the condition without a Prescription online pharmacy is called the Sympathetic vomiting. This happens when I saw, smelled or heard someone vomiting cause others to become sick and wanted to vomit.