Hi, recently I noticed that my right epididymis (tube behind my testicle, not sure if its epididymis) seems to be larger and harder than my left epididymis. I am 19 year old this year, and I experienced slight pain/sensitivity when I did not ejaculate after being aroused for about 2 or 3 days. However, after ejaculation, the pain and discomfort seems to subside over a few hours.
May I know if this is of any serious concern? Could this be epididymitis? I have no pain urinating or ejaculating, with no fevers, and my right testicle does not feel warm etc.