I have had this since 2012. I had a viral infection of sort. I have had extensive blood work done. I found that vagus nerve stimulation has a reduction in symptoms. Mainly, breath work that really extend the belly outwards and pressing out. My viral stemmed from the gut. Vibrations disappeared after many years of working on Vagus nerve. I got Covid in January and presto, vibrations and symptoms are back. Now working at vagus nerve protocol again more than ever. Also, I found that I had stool checked and have almost zero of butyrate, which is a necessary transporter from the gut to the neurotransmitter via vagus nerve. I think that has a bearing in why the vagus nerve isn't performing to its necessary function. Also, my norepinephrine is high which us also up the same neuro pathway. I have done extensive research which has been vetted by my team prior to finishing my book. The link between gut/brain axis to heal from this is high.