Do you get headaches when you are very thirsty? Very often 0 votes alina90 Answer Link Often 1 vote alina90 Answer Link Sometimes 6 votes alina90 Answer Link Rarely 1 vote alina90 Answer Link Never 1 vote alina90 Answer Link alina90 Alina Iliescu published on November 03, 2017 592 quizzes 24 questions 24 polls Follow Create Poll on Qfeast. It's just too easy! Star Poll Comments (1) KatHun Dehydration causes headaches. When you are thirsty you are dehydrated, that's why you get headaches when you are thirsty. 0 0 reply About Author Report on November 04, 2017 Subscribe