Here's that quote I told you about, you can find it in "BFS in a Nutshell."
"Some of the symptoms you have (vibrating, bubbling sensations, etc) are not related to the fasciculations. They are NOT symptoms of ALS, which is a motor disease. In my experience, most people with these symptoms are found to have underlying anxiety. I can't say whether the anxiety is primary (that is, no apparent cause) or secondary (because you are worried about the other symptoms). Many people with anxiety-related symptoms do not experience the usual sensation of anxiety and it may come as a surprise."