i had a kidney infection, that landed me in hopsital for a few years back.. and it was a dull ake in my back and had the urge to drink alot of water. also gor a feaver (around the 40?c mark before i told any one) and also felt like my head was going to explode beucase of a headace that came with it...but i agree drink lots of water, if you get a temp. go see a doctor for more abs