Dear madam, uroinfection can cause symptoms u re describing but if it is prolonged and antibiotica arent helpful then you should try to find another causes. You need to do US or CT scan
of abdomen and pelvis to rule out some intraabdominal disorder. Also you should do urinoculture and repeat blood tests. Inflamed bladder usually doesnt go with such kind of pain. After u do tests i ve mentioned everything should be clear.
Wish you good health