Your teeth have a lot to do with your physical health. The poison that bad teeth contain goes into your system and throughout your body. It can even affect your heart. Yes, go back to the dentist and get that cleared up. You will feel so much better.
I am so glad you are not still living with the abuser. Whew! So many women get caught up in staying for so many reasons. Fear, insecurity, both emotional and financial, so many reasons. And some women do not feel complete unless they have a man by their side. Any man. But you are not one of them. You are actually a strong person, although you may not see it at this point in time.
The abuser is a very interesting animal. Nope, they never accept the fact that they are doing anything wrong. They have a special knack for turning it around and making it all your fault. It is impossible to reason with them.