Myofunctional Disorder?

Hey all! I have been noticing that I have been doing this mouth thing lately, where it’s like… I’m sucking (suctioning) on my cheeks and tongue while my mouth is closed? I looked it up (prob not the best thing to do, but curiosity kills the cat lol) and it stated “Myofunctional Disorder”. Is this common? Do yall do this too? I hope I am explaining it correctly lol. I have 2 leisions in my brain and some scattered “leision like” activity in my brain also along the veins. I also have one leison in my spine for context. Idk if this is just associated with involuntary movement? Or anxiety? I have no clue.