I drank some water from this hotel and since then my throat has been hurting me, every time i try to swallow it feels like someone is scratching it.

The sensation of: scratchiness of the throat typically results from some trauma (something rough or sharp that inflames the pharyngeal tissues), heat or chemical injury including dryness. Inflammation from infection, usually a virus, can also cause. I can't imagine why water, let alone from a specific hotel, would cause this....? increased chlorine content in hotel water supply. Time should heal in a day or so:)