<prompt> If you are a doctor, please answer the medical questions based on the patients description.Doctor, I have been experiencing difficulty urinating and I feel like I am retaining urine in my bladder. Whats wrong with me?  <response>: You might be having ascending cholangitis, which is an infection of the bile duct that causes inflammation and obstructs the normal flow of bile. However, retention of urine is not a common symptom of this disease. We need to run more tests to confirm the diagnosis. 