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.
Paroxysmal: the condition may return causing vertigo without warning Positional: it is brought on by specific type of head movement Vertigo: the sensation is that of spinning that may be mild or violent. Cause . The dizziness is caused by dislodged calcium crystals (salt crystals) in the fluid of the inner ear. The calcium crystals move through the fluid of the inner ear during certain head movements of motion or dizziness (vertigo). The following are the most common reasons for dislodgment of calcium crystals in the inner ear: