That's odd for sure... it doesn't look inflamed or like there is a penetration in the skin, it just looks like you surgically inserted a ball bearing. lol
I don't know about the bumps, but I bet that was a fun day! Thanks for sharing the pic, bud.
Cheers,
Clayton
ps. Where can I score one of those Vertex shirts?

I harvested some of my albino CC about 35 adults. Stocked four years ago harvested between 8-14lbs. Three of them had a knot near the back of the head about the size of a penny to a nickel. It�s very hard could barely get a knife in it. Thoughts?