I don't know any info that may help you. I just wanted to let you know that you are not alone. I too twitch and jerk all over my body all at the same time (tongue too). I have many other symptoms bodywide as well. My tests also come back normal. Don't give up, keep trying to find an answer. If it was a vaccine maybe it kicked ur immune system up and yours is autoimmune related. get autoimmune testing. I can only hope you find the cause so that you have a hope of treating it and possibly improvement.