Why Do Disposable Vapes Make Me Feel Sick? Learn the Truth What's behind a vaping illness outbreak in the US? Why Do I Feel Sick After Vaping? Here's What You NEED to Know! Vapes are harmful and can be highly addictive. Some disposable vapes have nearly tripled in nicotine strength in the span of only 5 years. Why Do Disposable Vapes Make Me Feel Sick? Learn the Truth Vapes are harmful and can be highly addictive. Some disposable vapes have nearly tripled in nicotine strength in the span of only 5 years.