Behind the sweet taste of vapes, some pods hide hospital drugs like etomidate a powerful anaesthetic never meant for inhalation. , When vaped, it can cause seizures, breathing spasms, and sudden FDA is investigating reports of seizures after vaping STAT 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 increases your risk of seizures, typically within 24 hours of doing it. Don't let vaping harm your health.