Why Do I Feel Sick After Vaping? Here's What You NEED to Know! Most e cigarettes (vapes) contain nicotinethe addictive drug in regular cigarettes, cigars, and other tobacco products. Nicotine can harm the adolescent brain which continues developing until about age 25. Using nicotine in adolescence Teen Vaping: What Parents Can Do Children's Hospital Colorado Why Do Disposable Vapes Make Me Feel Sick All The Time Are Flavored Vapes Bad For Your Health? A New Study Suggests These Australia You Make Me Feel Lyrics Vapor Hiding Dangerous Ingredients: E Cigarette Concoctions Are Far from Safe American Lung Association Can Vaping Make You Sick? UPMC HealthBeat