I had a BAD UTI once. I was 17 and dumb. Like you had no burning while peeling just bad cramping in my lower abdominal area and pressure while going. I also had to go with nothing coming out. Like a dumb teen I let it go. About 3 weeks later I was extremely ill. Passing out, vomiting, headache extremely weak. The infection got that bad. So this won't happen to you because you have been on 2 separate meds but there is such infection that only cause urgency and cramping. I don't mean to offend but could you be pregnant?? An early symptom is extreme urgency? I had it so bad with my 4 pregnancies very early on. I also had UTIs during my pregnancies.