Do you think you could have RSI {repetitive strain injury}or even possible TOS {thoracic outlet syndrome}?

Where are your symptoms located when they flare up?

Arm, neck, shoulder, hands or upper back?

TOS and RSD do have overlapping sx at times and if it is your upper body that has the symptoms and you do repetitive work {or lots of desk work , forward head, forward arms, reaching up/out} it might be something to look into.
It's possible to have both RSD & TOS , some members here have both.

Here's the TOS forum useful sticky thread - post # 1 has great info links
http://neurotalk.psychcentral.com/thread84.html