For the past couple of days the left side of my chin has been numb (like having had an injection at the dentist which is wearing off). It does look a touch swollen but i m now unsure whether this may caused by me constantly touching my chin to see if anything as changed. I currentky have a rotator cuff injury for which I m still awaiting physio and was wonder wether this injury may have trapped a nerve and could actually be cause this problem. Having looked through the internet the only diagnosis is NCS which isnt pleasant reading.....