Symptoms of a bladder infection.

Patient: Hi, I’ve been have some symptoms similar to a bladder infection recently. Aches in the lower abdomen, lower back pain, darker, cloudy urine. However i’ve done two urine analysis and both results came back negative for a bladder infection and STD (chlamydia and gonorrhoea). I had an ultrasound scheduled for me but but I was wondering what other problems could match these symptoms?

Symptoms: Aches in the lower abdomen, lower back pain, darker, cloudy urine.

Doctor: