Misconceptions Over The Safety Of Vaping and E Cigs Is Risking Lives Ecigclick Did you know many people think vaping is less harmful than smoking? While it's true that e cigarette aerosol doesn't include all the contaminants in tobacco smoke, it still isn't safe. Most Vaping can cause short term issues such as: Respiratory issues (coughing, difficulty breathing) Mouth and throat irritation Nausea and vomiting Headaches Chest pain Increased stress and Can Vaping Cause a Headache?