Is it normal to drink 9-12 liters of water a day?
I am an 120 lbs 5'4" 19 year old female. I workout a lot and have a very active lifestyle, but I feel like this is still too much water. I drink this much because I am genuinely thirsty, and when I drink less I have all the symptoms of dehydration (headache, fatigue, yellow urine). I thought that maybe I had diabetes, as constant thirst is a common symptom, but when I was tested for it, it came up negative. The doctor suggested incorporating foods with a high water content and juice into my diet. I eat fruit with every meal and have juice every morning and I am still incredibly thirsty throughout the day. Is this normal? Does anyone else experience this? And if so, is it due to some medical condition or are there some people who just need more water than others?