Thanks guys - I'm sure stress is a factor though not the real trigger here.
In fact I'm cataloging what might be the various triggers that cause these and top on the list are some synthetic sweetners, flourescent lighting/multiple light sourcing...
Sometimes relaxing in a dark room works and sometimes I need to do the above and have an Amerge when they get bad...
Most physical pain I've ever heard was when I tore out my ACL, a bunch of cartilage, and damaged other ligaments - sometimes this gets close...
Interesting to see how many people have been going through something similar as well. PeteG - I feel for ya... (btw - I have not been gaming - yet
as I'm building my dual core E4300 to overclock from 1.8Ghz to 3.0)