I feel Dizzy/Light-headed all the time whenever I move my neck back and forth or sideways. Whenever I lie down, I feel heart beats in my head continuously. I do not have headache. My doctor suggested me tablets for inner ear infection but that has not made much difference. The effect is more in the morning and slowly it reduces till night. It does not go away completely. What do you think should I do? Is this something related to strain on spine/neck?