I've been having some irritation while urinating since last 3 days but now it has worsened. I have to frequently urinate in every 15 minutes and sometimes I am just not able to control it. I've had a case of kidney stones along with UTI earlier but it was cured with medicines. Also I had undergone this gall bladder removal surgery earlier this year as I had a stone in it. I do drink a lot of water but I am suspecting that the problem would have returned as I also have this pain on my left hand side lower back. Please advise.