It's hard to describe the feeling, it is like a mix of pain and pressure right under my eyes and in my cheeks. I definitely have not felt the same since I started wearing my trays back in April. My dentist thinks it is odd that I am feeling this way since he has never heard of this before. Does anyone have any advice? I have 5 more months of my teeth shifting then a lifetime of wearing the retainers and I seriously cannot live like this anymore. Maybe I am allergic to the plastic? Please help me