What Causes Frequent Head Vibrations?

Hi Doctor, Let introduce myself, I use to work in nightshifts and also its rotational shifts. for last few months Im feeling that my head is vibrating that too on left side. It wont continue for more than 5 - 10 mins. Since working in nightshifts , my sleeping times also differs. I wont sleep continuously for 5 hours. Dnt know its because of my sleeping times.