Hello and welcome @luckymspenny1 and @7881188. Thank you for joining the conversation about internal vibrations, tingling, buzzing, shaky leg, and all that other not so fun stuff.

You're both asking the great question of, "what is this and why is it happening?" Are odd sensations from COVID or maybe from the vaccine itself? Interestingly enough one of you has had COVID and the other has not, and one of you has been vaccinated and the other has not. If you scroll back through this conversation thread page by page you will find you're not alone in wondering. Many tests later prove nothing is wrong, many doctors later brush it off as anxiety. It is neurological, but why?

Because I have Central Sensitization Syndrome (CSS) and have experienced symptoms like restless leg syndrome, internal vibrations, buzzing, shocks, etc...I can offer you information about CSS that may help answer your questions. I will say that anxiety can definitely increase these symptoms, but not likely to cause them as some doctors chalk it up to.

I'd like to introduce you to Mayo Clinic's Dr. Sletten who heads up the Mayo Clinic Pain Rehabilitation Center. He offers an in depth look of CSS and explains the how the central and peripheral nervous systems can be affected with upregulation and changes. Here is a video explaining more -

Central Sensitization Syndrome by Dr. Christopher Sletten:

- https://www.youtube.com/watch?v=vJNhdnSK3WQ

I hope this helps explain some of what you're experiencing. Would you mind letting me know your thoughts after watching the video? There is a lot to digest. Does any of it resonate with you?