Well good to hear I am not alone. I reported the internal vibrating feeling that runs from the left shoulder into neck and head area to my Doctor over 4 years ago. The Doctor here in the UK refused to do anything else except give me beta blockers and some other pills that did nothing to help.
It appears to me that it came about for possibly a number of reasons. Firstly, I had to carry about 24 air conditioners weighing 35kgs from a truck to lowering them to ground level, therefore putting strain on my rear shoulder/trapezoid area. Secondly, I had been to a chiropractor for a general manipulation on my back and during this visit he twisted by head violently from one side to the other. Now, I have had this manipulation carried out before with no side effects.
Thirdly, Gym work using weights above my head may have contributed to the problem.
Lastly, I was fitting a ceiling in an awkward place in the house and for hours on end my head was bent backward as I looked upward in a very cramped position.
So many visits to the Doctor got me nowhere. I paid privately to see a neurologist and neurosurgeon. They took MRI scans but everything showed normal. I do believe its something to do with possibly pressure on a nerve in the shoulder or neck area. Some physio exercises have appeared to help at times but not to any great extent.
My head feels worse after driving as I can hear a roaring sound in my head after leaving the car. Using even a lawn mower seems to enhance the vibration so external sounds seem to make matters worse. For the past 6 years or so I spend most of my working day in front of a PC so this may also be a contributing factor.
I have plenty of neck shoulder massage but that does not really alter the vibration issue. It may even make matters worse if excess pressure is applied to these areas.
I have no idea where I go from here. Its no better or worse than 4 years ago so do I just live with it. I may may explore the idea of getting the shoulder or rear of the shoulder looked at but whether any scans can highlight anything I don't know.
Its just one big issue I could do without at my age of 60 as sleeping is disturbed resulting in being tired in the day.
If anyone has anyideas how to cure this I would be very pleased to hear from them.