I feel dehydrated all the time, what could it be?

Question

it started a few weeks ago, i go through about 14 bottles of water a day, i havnt drunk any fizzy drinks or juice or anything thats not water ever since it started. I have lost a lot of weight but its not realy a good thing because im 14 and weigh 38kgs and everyone tells me im underweight, and i told my parents but they dont listen...what could it be that making me dehydrated all the time?

Answer 1

did you take drugs or mayb u should go see a doctor

Answer 2

I agree with Get Real, you need to be tested for diabetes.  

Answer 3

you need to be checked for juvenile diabetes; you have listed the classic symptoms: excessive thirst and unexplained weight loss

Answer 4

Maybe it's the heat or dry air? Maybe see a doctor. Good luck.