Numb chin and lower lip

Hi I went to bed on Thursday night and was just dozing off when I woke up due to a numb feeling in my face. My lower lip and chin (mainly on the right side of my face) went numb. It's now Saturday and it's still the same if not slightly more numb than before. I feel like I have this restriction in my jaw, I can only open my mouth until a certain point then it gets sore. Planning on going to the doctors on Monday if still numb. Does anybody know what this may be? Thanks