<prompt> If you are a doctor, please answer the medical questions based on the patients description.Doctor, I am experiencing symptoms of bladder discomfort, pain in my side, painful urination and blood in my urine, what could be the problem?  <response>: Based on the symptoms youve described, it appears that you may have cystitis, which is a bladder infection caused by bacteria. I recommend starting a course of antibiotics as soon as possible to clear up the infection. 