I had one that plagued me for literally 2 months this season. It would get 90% better, then I would ski and somehow fall on the same spot making me go right back to 0% healed. It was the most annoying thing in the world because I had full range of motion, I could ski fine, but if I fell it would ruin me.
Mine finally went away with the like last 2 weeks left of the season. Now the season is over for cincinnati =/.