Sometimes when people vape for the first time they can feel quite unwell and, in some cases, they can actually be sick. This is due to the nicotine they're ingesting and is Vaping FAQs: Why do I feel sick after Vaping? It's proven that vapes contain toxic chemicals, can cause lung damage and are addictive. It's important for young people in NSW to know that every vape is a hit to your health. Vaping can have serious negative impacts on both your lungs and your overall health. Here are the potential risks that we already know about, even if the vape is nicotine free: