Concerning your pain across your face, you may want to check this site out. http://www.drshankland.com/pain_disorders_tmj.html

I get mouth sores as well but I still have 3 amalgams. Mouth sores for me always surface when my TMJ is bad or Fibromyalgia acts up or I am under stress. I would not doubt the sores are a way of your body trying to detox.
Hope this helps some.

Veg