Hello Dr,I am 24 year old,I drink lots of water(4 litres), and yet have not had the urge to pee all day. I went to the bathroom to try and a little bit came out, but nothing substantial, other than the fact that usually when I drink so much water it is clear. I m not sure whats wrong, as I have no other symptoms and feel just fine. It s worrying me a lot n I taake Valparin chrono 300 (Morning & evening),plz suggest me