Anyone else experience this? 
I was born with near perfect teeth, but between the ages of 12-16 I shifted them because of the amount of tension I held in my jaw and grinding my teeth together. 
I got braces which straightened them out and they stayed straight for several years, but now I can feel tension shifting to my jaw and mouth again and I catch myself many times a day clenching and grinding my jaw and I can feel my teeth moving out of place again. I’m trying to stop by chewing sweets and gum but it’s no use (and not good for my teeth). I wish my jaw would relax, it’s so uncomfortable.