So when I get incredibly stressed out I get full body muscle spasms. I'm not talking like a nervous incessant leg jiggle or when your eye starts twitching. I mean I have to squint my eyes, (for like a long time and can't open then until the spasm stops), push the muscle under my nose down (idk if there's a term for that), pull my ears back (like when you smize) and basically have a giant muscle spasm/have you contract all my muscles sort of in order from top to bottom, but not always but no matter what it always starts on my face.  I have vague memories of this happening when I was a kid, and on the random occasions it comes back I have to do it a lot in throughout those days until it's gone.
I feel like I do a really bad job at explaining what this is and it's easier to show but I never have shown anyone before because I hate it and feel really insecure about it. Has/does anyone else ever get this? Just a few days of powerful full body tic-esque muscles spasms?  Then they go away for sometimes months. Sorry for all the run-on sentences.