Does anyone ever get vibrations in their head? I've had these twice today; 1 earlier and 1 just a few minutes ago, but my second one was just after I moved my head to quickly. Do you think this is what has caused this? I also wear glasses for on the computer etc. and I'be had them on for a bit today becuase my right eye was sore (that's my bad eye), but I'm totally freaking out that they're linked. Has anyone ever had the vibration before? Need some re-assurance please. Thanks x