I woke up this morning with a UTI. i went to the doctor this morning and about 14 hours ago i started taking the antibiotic ciprofloxacin. i have also been taking Azo pain relief. i get UTIs frequently and usually Azo helps a lot but with this one it doesn't seem to be working as well. I feel very weak with no appetite. Usually I have relief with the antibiotics after the first dose but this time i have taken two doses and still feel the same. Is this something i should be concerned about? Thanks