Hi, welcome to our site. I am Dr Saumya Mittal, MD. Read your query. That is a very significant question and i appreciate your problem. I will try my best to answer your query I would have personally suggested that you have an MRI of the spine to make sure that there was no serious medical condition affecting you. Now I dont know what you mean by bc in relation to what the doctor told you. But I dont think a uti could really explain the backache, unless it is because the pain is affecting the other parts of the urinary system as well. I personally would suggest to my patient an MRI, ot at least an X ray of the spine. And may have added a prescription of methycolbal, and suggested physiotherapy and fomentation I hope this helps you. Inform the reports mentioned above/if any other so I can be of help further. I have given you the answer to the maximum considering the information provided. The results of the tests could further enhance my answer to you. Please do understand that some details could be extracted from a detailed history and examination. Please feel free to ask another query. I would be glad to help you. Looking forward to your return query with the details asked so that I can help you further. (If the answer has helped you, please indicate this) Best of luck.