High water consumption secondary to high insensible losses

Patient

Q: Hello,I am always thirsty no matter how much I drink. I drink about 300 ounces of water a day and I am still constantly wanting more. I got a blood sugar level monitor, but it is only between 80-104 in the morning before eating and only 112 after meals. I am very thin, only 130 pounds at 5 foot 8 and until recently, always ran 60-80 miles per week, but I hurt my hamstring and have been taking off for a month. I do not have insurance, so I cannot afford to get a whole bunch of tests. Can you recommend anything?

Doctor

A:   If you normally run 60 – 80 miles per week, this averages approx 10 miles per day, which indicates an extremely high level of daily exercise. You may be excessively thirsty because of your high level of insensible losses while running (water lost in sweat and exhalation through the lungs). Your blood sugar readings are normal before and after meals, therefore there is no indication you may have diabetes mellitus. I would advise reducing your exercise levels temporarily and observation of the effect of this on your daily consumption of water and symptoms of thirst. If your symptoms do improve with this temporary adjustment, further investigation is required with your family doctor.

Related Q&A

Q: My 68 year old father has been diagnosed with an unknown virus. Prior to this diagnosis, he was generally healthy, wi...

Q: Ive been so tired for months now! Out of the blie this morning I tested my fasting blood sugar level and it was 164. ...

Q: When my sugar is low I experience exaggerated movements. Why

Q: When my sugar is low I get exaggerated movements. This has happened 3 times now Why?

Q: Think have diabetes..dont have medical insurance nor a primary physician. Found a lab that will test for diabetes sho...

 
DOCTOR ADVISORY BOARD
218

Dr. James Obaji M.D.

  • 247 Reviews
  • Family Physician
173

Dr. Suneel Sharman M.D.

  • 190 Reviews
  • Family Physician
138

Dr. Pat Golden M.D.

  • 169 Reviews
  • Cardiologist
98

Dr. Kunaal Jindal M.D.

  • 112 Reviews
  • Plastic Surgeon
CNN
BBC
MSNBC
CBS
abcNews
FoxNews