You and me both have these issues so DO NOT FEEL ALONE! It is so scary but I am glad you made a post about this.
My anxiety stems from my health so every little thing I think "well, this is it... I am gonna die soon." Yet, here I am!! Though my issues have been going on for a couple of months, so I do think something is out of line, I try to keep positive. But everything you said, I experience. The only difference is, I do not jerk as much. I have always had a jaw tic which is not at all bad but does get concerning and worst when I am stressed. If it is concerning, do you have a therapist or maybe a good GP? I'd see them. It will help your mind ease, you GP might refer you to a neuro which I have and they will test you too.
Let us know what's happening when you can.
"tune, like, the music!"
generalized anxiety/depression, ocd compulsive thoughts, asthma/allergies, weird headaches
suffering other aliments, trying to find the right solutions!