This type of presentation is mainly in cases of Urinary Tract Infection
UTI) or if there is some injury
in the urinary tract
because of stone. Usually UTI presents with fever
and burning urination and blood in urine. But some time the presentation can be different also.
I would suggest you to consult a doctor regarding this condition as taking water only is not going to correct this. There can be a number of conditions which can lead to this type of presentation and only after proper history and examination and some investigation only some one can say something in confirmation. UTI is one of the most common thing which can present in this form, so I suggest you to consult some doctor and have a proper check up ragarding this condition.
In the mean time it is good that you are taking plenty of water and keep an eye on your water intake also to avoid water over loading which can again be a problem.
Thanks and take care