hi, about four years ago i kept having what i thought was uti s frequently. But all the urine samples came back negative. Then they found strep b in my urine. But after trying three different antibiotics nothing worked. The doctor told me strep b is hard to rid once it enters the urinary tract. So i was advised to take vitamin d3 2000, probiotics and cranberry which have worked for some yaers now. Only around the time of menstration I feel symptoms but after my cycle i feel better. however lately i feel the urge to urinate very frequently. No burning pain or back pain just the need to pee frequently. at the doctor office she said there were no signs of high wbc count. I habe been taking my vitamins like usual but Im not sure whats going on now. Thanks virginia