Wow can I relate I have had the same for over 3 yrs too. It started out bad at night I could feel it all over my body with these strange vibrations. I went to neurologist and after several tests he claimed I had restless leg syndrome. Gave me a prescription and I never went back. I feel it came from either the Covid vaccines or having Covid which I had both. It’s still with me at night always the strongest. Like you I have just learned to live with it. I don’t think it will ever go away.