Controller messed up

So, because the title and video present, my controller’s proper joystick now has a thoughts of its personal. This began at present (atleast to my data) after I introduced my Sequence S over to a mates home and let him use the controller whereas I used my XB1 controller. I’m completely uncertain of what incident may have prompted this, besides at one level within the evening my pal by chance pulled my sequence s off it’s shelf accidentally not understanding there was a twine beneath him. The system itself appears completely effective and to my data the controller was untouched when this occurred, so I’m fully uncertain of what may have prompted this. My XB1 controller works effective.