I am in process of finding a new Dr. Mine retired I believe health issues were his reasons. Any way I have had urinary track infection for over 2 weeks! When I saw this new Dr the May 31 he ran blood work and a UA on me . He wanted me to see him in 5 days. And e told me then that I had UA. He put me on Bactrim. Since Friday I have had back pain,vomiting and diarrhea headaches that have turned into migrainesI ,My urine smells yeasty I have been hurting so much all weekend. I have Fibromyalgia but never had a pain in my back like this!! I have not slept in about 3 days! Could you please offer any suggestions???