Hmm...since this thread was bumped I had thought of posting about this too a while ago but since
it's been bumped
here goes.
I experience a tingling sensation except at the top of my head like where the crown I think is located.
It's on/off also seemingly of its own volition. & it's a tingly sensation kind of feeling prickly right where my hair sprouts on the top of my head.
Anyways. I haven't the slightest clue what it is but hmm I will say I didn't notice it until after my first spiritual experience a few years ago so I would venture to say it was a result of that experience.
I guess tingly sensations have to do with the chakras being active?? That's my theory.