I remember when I was little my mom told me I clenched my jaws during sleep but that was a one time thing. Lately I've been in depression since last year and I've been extremely anxious and nervous and paranoid. I've had migraines and headaches during the day but I started to notice my cheeks always hurt and noticed scars and cuts inside my cheeks as if I was biting them. I assumed it must have happened while eating but since it kept happening I began to wonder if I was clenching my jaws.

Last night I had slept very bad and kept waking up and I distinctly noticed how I was biting down really hard on my molars. Then today I have a really bad headache and I notice how I am, actively biting down very hard as soon as I forget not to do it. It feels like it's out of my control and I automatically go into clenching mode. Has this happened to anyone else? Is it anxiety related or could it be something else? 

Any help would be great. This is making me extremely worried especially since I have health anxiety