No idea what that injury is called.  I'd be careful of fancy spin moves.  Running seems to be best done in the predictable plane you've been mostly training in.  Venturing outside that plane too much in an aggressive manner, doing things your body isn't exactly accustomed to, I think can be a good predictor of an injury in the making.

For example, I'm recovering from a pretty substantial calf injury-with most of the pain after 3 weeks having finally been isolated to an area on the outside of the calf which I found on Saturday could also be isolated fairly well by modifying how I was planting my left foot.  So, I also decided to try and be cute I suppose and went with that modified plant during a 5K race yesterday.  Sure, I had what looked to be a great outing for someone recovering from a bad injury-but this morning I've now got a whole new area of soreness on a tendon in the back of the knee on the same leg-which I'm now pretty sure is because of using my nifty new foot plant at a 6:30 pace.  I'm hoping also to be back in a few days now, and maybe I'll be a little smarter about playing it cute in the future.  Probably not-we runners seem to have a knack for the cute and stupid.

Look into Tarsal Tunnel Syndrome.....inflamation = no heat    Edit :  if that welt is a "hot spot" check the shoes