I can actually feel this when I touch my arm with my other hand. These vibrations I supppose could be VERY rapid muscle twitches, but it seems more like the feeling you have when you put your hand on a running car. This sensation has only occured for a short time and only when I am laying down at night. I have also had a feeling like bubbles from an coming to the surface of pop in my calves and once in my foot, which caused my toe to quiver. I have had blood test and an MRI nothing has shown up yet.
Doctor says it's stress.
I should mention that I am 30 year old female. I do not feel I have any weakness. I can walk on my toes and heel toes walk. Most of these symptoms are on my left side though the twitch occurs every where. Fascics can indicate nerve damage.