Basically I think if you got TOS by work/repetitive motions - then I do think you could be making it worse by continuing to work unless you can make many lifestyle and workplace adjustments.

I think you have to look at your whole body alignment and postures also - how you work and hold yourself.

Is your head forward of your body?
shoulders up, hunched, rolled forward etc??
have a family or friend look and tell you or a PT if you are going to one - if you go to PT and they don't address any posture issues find a better one.

Ergo/posture/bodywork links in the stickys-
http://neurotalk.psychcentral.com/showthread.php?t=84

Stresses/tension = learn to relax , we do hold it in our muscles Diaphragmatic breathing = oxygenates cells , releases toxins from cells and helps relaxation

Since you've been reading for awhile I won't repeat my reminders about finding very good PT, DC or MD.