hello i am new and not sure if i posting in right place, re buzzing in head, i have had this for a year now constantly and when ilie down its like a loud electric buzzer keep going off, very frightening, i usually drink alot of coffee and energy drink, so gave both these up few days ago and noticed big improvement, not sure if this is the answer but i hoping so for me, i am back on coffee but only small amount and hope this silence continues