Thats me...I HAVE to have a source of water near me at all times or I feel...completely freaked. I take a bottle with me anyplace I couldnt get water immediately (shopping, the movies) and almost always have a glass at my side while Im chillin at home. I pee SO much! BUt it makes me feel really clean. I do think its unhealthy to drink too much though, Ive gotten sick from it before. Now I drink plenty but I force myself to sip it instead of gulp it. In the past Id just gulp one cup down, get another, and gulp that down, and so on. I find a lot of it is the psychological need to just have the water near me than actual thirst.
P.S. I NEVER was like this until about 6 years ago I had to pass a piss test and for a week I was drinking as much water as possible trying to clean my system. It felt so good I never wanted to stop!