Dehydration can be very serious and make you nauseated.

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Dehydration can be very serious and if left untreated can be fatal, common symptoms of dehydration are headaches, feeling nauseous and dizziness. so in short your statement is true.

Nothing will delay it, but drinking some lemon (squeeze 3) would cut it, making it last a few days, but its not good to do that. won't hurt you but the next month will be more cramps.. take some advils with you on the trip