Whenever I'm thirsty at night I'll have dreams where I'm chugging water, happens every single time. I'll chug a whole water bottle or even a gallon jug and get frustrated because it doesn't quench my thirst, so I'll get more water and keep drinking and feel weird because I'm still thirsty after drinking so much water. Then I wake up thirsty and feel amused about my dream, drink some water while awake, and go back to sleep and dream something else. It's so funny, like I stop whatever I'm doing in my dream to get water, and it doesn't work, so the dream becomes all about drinking more and more water.