Has anyone ever done that thing where you don't really move your neck weird, but your neck thinks you do, and it feels like it just BURSTS with blood inside and the back of your head gets really hot and burns for a few minutes?

That happens to me every once in a while. And i don't know what it is or why it happens, so that's sorta creepy, but it hasn't affected me too much apparently!

Does anyone know what this is, or have any other strange head-related odd pains and ailments?