Hi...I am 25 yrs. old...A week ago my right testicle became really sensitive...the sensitivity lasted a few days and has since gone away...when I push my epidydimis to the side there is a small hard piece right where it attaches to the testicle that was causing the pain...the pain is gone and the hard piece is still there...it seems to move around a bit...do you have any ideas of what this might be? I saw a doctor and he said the pain was likely from scar tissue that had built up from trauma to the testicle three weeks prior to the pain begining...is this likely?