What if the water itself is the villain? Tap water can carry trace amounts of copper or chlorine, which upset sensitive stomachs. Filtered water might lack minerals your body craves. And if you’re on medications (antibiotics, painkillers), water can suddenly amplify their side effects.
Try a different brand of bottled water—yes, they do taste different. Or test a charcoal filter. If the nausea vanishes, you just learned your tap has a secret vendetta against you. Plot twist: you might have a mild allergy to the plastic bottle itself. Swap for glass if you’re fancy.
