One thing to note............. Jaylon has always run like a spaz at times. This dates back to college. He's very fast and athletic but he's not that guy that has a smooth running style and movement to him. His head is sometimes always bobbing and his arms are flailing around.
Again, I am in no way suggesting he isn't hurt with some, any, injury here. I have no idea but I think people might be overanalyzing his movements at this point because he's just not playing well (frankly, none of Lee, Smith or LVE are playing great).