Hi, not sure if its a mod causing this or a vanilla issue but once you notice it, its EXTREMLY annoying. only the main char has it, no NPC shows this behavior. the video should explain the annoyance. It looks like your char has some kind of inner pain or illness .. totally hating it.
check second 3 to 4, and 13 to 14. Obviously its an animation loop which is not finalized in the correct positioning. so 1) is this a vanilla problem or one of my mods causing it ? 2) if vanilla which i assume is there a FIX for it please ? greetings, Wood