Hi
But don't jump to conclusions reading on the internet it could be varicocele or torsion of testis too since you complain of pain too. I would suggest you go get yourself examined by a general surgeon as soon as possible.
Sorry, forgot to mention, that i did see a doctor about 1 month before my Ultrasound scan of the area. No torsion and recieved 2 sets of antibiotics. Doctor thought that it could have been epididymitis but was not sure, so he set up the Ultrasound.