I have been taking 800 mg of bactrim 3x a day for almost a week now. I have noticed that I have shortness of breath ( and heart is racing) that I didnt have before. It's not the same mucos stuck in there and i need to get it out . And does anyone else have reoccuring UTI . My PCP said it was probably due to all the meds that I'm on. But I dont think I believe that . The only oral meds I'm on are Nexium, Synthroid , Aquadeks & Creon . I do take ibuprofin maybe 1 time a day . I try to not take it every day but I have joint pain and some fever . I dont think inhaled meds would have a affect on my bladder.