Neck & spine shakes
I feel if I can stiffen/flex my neck at certain angles & my neck & spine starts tremoring/shaking with high frequency. I can sustain it for a few seconds at a time until it stops and I can’t make it happen until some time later. The immediate feeling is discharge of nervous energy although I can definitely overdo this which leads to increased anxiety later in day.
Are these neurogenic tremors & is it safe to do this?