Last december, my tummy aches. I thought that was just a simple dyspepsia or peptic ulcer disease so I drank anti- ulcer drugs.But, when I consulted a doctor she told me that I have urinary tract infection. But she suspected at first that I have urolithiasis.I took antibiotics for that. But it seems, that condition repeatedly happen to me. Since December, I experienced the same for 3 times.The last attack was so unbearable that it took me to be confined in a hospital.Same diagnosis was given.my ultrasound reveals microlithiasis but my Intravenous pyelography reveals I am negative with urinary stones. I remember engaging to a sexual contact with my boyfriend but no penetration occurs.