I had testicular cancer in April of 2008 and had my left nut removed. I had an RPLND in June of 2008 and that came up clear. I've been clear on all my checks since then but a few days ago I noticed that my right nut seems bigger than usual.

When I lost my left nut I noticed something was up because there was a big lump on it (which was the tumor). There's no lump in this case but it's definitely swollen.

I'm an active guy who workouts, plays basketball, etc several times a week so could this have been caused by doing something or is this a serious sign to get it checked out?
Should I give it some time to see if the swelling reduces?