Was diagnosed with two kidney stones three months ago, sized 1.9 mm and 2.2 mm. While I had consulted a doc and been told to increase my intake of water, which i did considerably. It is only now that I have been experiencing stabbing inflammatory pain. Just wanted to know whether this pain means my stone has grown, or do i have another stone? The pain is at the right side of the rib cage for the past 2 days. Also, how long does it take a kidney stone to grow? Thanks.