If it's really extreme then see a doctor about diabetes or maybe too much sodium in your diet, but if you just like water then go with it. There's nothing else better for you and most people have trouble getting enough water into their day.
Just how much water do you drink? They say 8 glasses a day, but I cant do it unless I was outdoors in extreme heat all day.
It COULD be that your body has decided to detox, and flush out some toxins. However, go to the doctor if you're still worried... Best wishes for finding out what it is!
its scary, but knowing is better than not knowing. Go to the doctor, find out what it is and start dealing with whatever it is. It is better to be scared of the existing problem than to scare yourself with the unknown, because the latter is often scarier. Good luck.
Diabetics sometimes do this, but this is hot summer weather, so accept the obvious, dehydration is easy to do unless you drink extra water.