Apple_in_my_Eye wrote:
IIRC, there aren't any pain nerves in the brain, though the sacs around the brain do have them. Not sure about the ventricles or the blood vessels, though. Anyway, I also remember that there is "referred pain," which is where the brain will interpret pain from one place as coming from another place (like heart pain in the left arm during a heart attack). So, maybe that's where tingling "inside" the brain comes from.
Back in my computer hacking days (teen years, 1980's) I remember feeling as if my brain was 'buzzing' after a long sessions of writing code. Can't say that it felt localized on one side or the other, though.
The blood vessels do, the ventricles probably don't. I imagine its a combo of referred sensation and sensation from blood vessels.
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