About 1 week ago I was having some bladder problems. It was hurting for me to pee and I had blood in my urine. The doctor treated me with an antibiotic that I have taken most of my life, so i am def not allergic. But recently I have been having pain in my back and stomahc problems at night. At about the time I sit down to eat dinner my stomach starts cramping and i get pretty bad diarhea. I am no longer on the antibiotics. I am also very tired alot. Anyone have any idea what might be wrong? I am a 22 year old female.