I have been feeling fatigued and have had some lower back pain for about a month or so. I went to the doctor and it turned out that I had a bladder infection. He prescribed cipro for the infection. While on cipro I feel that my symptoms went from bad to worst . Along with the increasing back pain and fatigue I also been experiencing painful gas, bloating, and tenderness all throughout my legs. I went to the er on Tuesday And I still had the infection, so they switched my antibiotic to cephalexin 500 mg. I was afraid to take the cephalexin because of the side effects which included severe diarrhea...I ve always had a sensitive stomach and didn t want to make things worse ... I decided to finish the cipro and endure the side effects. I finished the cipro Friday but the side effects are still lingering .. I now decided to take the cephalexin..am I on the right path, please advise, thanks