Why is my enlarged testis uncomfortable?

You may be suffering from a urinary tract infection. This condition can make you feel a burning sensation and pain when passing urine. The infection occurs as a result of bacteria entering into the urinary tract system. Taking a lot of water and cranberry juice is advisable. Visit your physician for a medical examination where they will determine whether there is a need for antibiotics prescription or not. 

After a kidne­y stone surgery with a DJ stent, it is fine­ to have sex. The ste­nt will not cause problems during sex. But, you should take­ it slow and pay attention to how your body feels. If you fe­el any pain or discomfort, stop and talk to your doctor. Remembe­r to drink lots of water and follow your doctor's advice. 

More detailed history and tests like Uroflowmetry and Ultrasound with Post void residual measurement will give accurate diagnosis. If it’s BPH only and not improving with medicines then might need a surgical treatment. There could be other reasons like urethral stricture or high bladder neck which is also dealt surgically.

There may be several reasons for this. It could be caused by infections like urinary tract infections or sexually transmitted infections. Sometimes, it might be the result of inflammation or even an injury. They might examine you and do some tests if needed to find out what's going wrong and give you the right treatment for you. Meanwhile, it would be better if you refrained from any physical activities that aggravate the pain, such as masturbation, so that the body can heal itself properly.