cipro online

I took Bactrim for 7 days...then the doctor prescribed Ciprofloxacin. Today's the 2nd day of Cipro. and I'm bloated, still going to the bathroom constantly and have pain in the lower back & abdomen. I haven't had any burning sensation, smelly pee, blood...none of that...could this be something else? I know it's only been a day and a half on Ciprofloxacin but I didn't seem my symptoms in anything labled "side effects" so I was getting nervous.