Due to me getting abused by my ex boyfriend, I've been grinding my teeth a lot. I don't even realize that I'm doing it. My niece has been staying over here ever since she was younger and has woken me up and told me that I've been grinding my teeth a lot. Told my Mom that I need a sleep guard. Does anyone else do this due to PTSD? I've just now realized I've been doing this a lot and I hope I get better with sleeping. All I want is to have a better sleep.