While their size and shape vary with location in the nervous system, most neurones contain the same parts: a cell body; a number of highly-branched outgrowths of the cell body called dendrites; a single, long nerve fibre (or axon) extending from the cell body; and branches at the end of the nerve fibre (axon terminals).
My doctor said that usually happens when blood pressure is high and you get that strange head sensation. But as I was reading some documents on net, I found out that it could also be some sort of a panic attack. You could try next time it happens to relax, try thinking on some peaceful place, and just calm down.
Headaches caused by hormonal problems due to changes in hormones are usually experienced in one side of the head. Headaches in the back of the head are normally due to mental tension, stress, improper posture, and depression. It is mostly the kind of pain that is sharp in the head that comes and goes.