For dudes: kicked in the nuts?

My 3 year old kicked me in my left testicle yesterday morning about 6:30 or so. It didn't immediately hurt, but the pain increased throughout the morning. It swelled up, and hurt basically all day. I sat as still as I could most of the day at work because that was the only thing to ease the pain. However, it still hurt just as bad at 5pm as it did at 7am. When I got home from work, I had a bunch of things to do around the house that couldn't be avoided, so I pushed through the pain and became "active" doing the chores. Within 10-15 minutes of walking around, the pain had subsided and the swelling was gone. Turns out that just moving around steadily for 10-15 minutes instead of sitting absolutely still for 9 hours was the trick.TL;DR : If you get kicked/hit in the nuts, the best remedy for the pain is to walk it off. Be active for 10-15 minutes, and the pain should go away.