Why Do Disposable Vapes Make Me Feel Sick? Tastefog Why Disposable Vapes Cause Nausea: Key Reasons Vapes aren't always just nicotine. Some may be laced with substances like cannabinoids, ketamine, or etomidate, which can trigger psychotic symptoms such as hallucinations or paranoid thoughts. Learn how these substances affect Vaping and Its Impact on Health: What You Need to Know Physicians Health Plan Feeling Sick From Disposable Vapes? Here's Why Mister Vape