Well... If you can find self help things to do that work for you that is the best way to get a head start. Don't wait on wc or drs to help you.

I found some of the best stuff by searching online then I found forums like this one many of the links I collected are in the useful sticky threads.
I was looking for repetitive strain therapies at first but soon my hand/arm symptoms joined up with my neck & shoulder symptoms , so then became a chronic RSI/TOS thing.

You may find that it may take a year or more of good PT/DC , plus many times a day self care focus to turn TOS around. Especially if you are in quite a bit of pain now.

Are you on any meds for pain? OTC or RX?
Don't over do the OTC stuff ,it messed up my gut

Does heat or cold help for you? resting your arms?

A good start point is the yoga corpse pose with arms out at comfortable position and palms up if you can
relax and do diaphragmatic breathing
- http://www.swamij.com/diaphragmatic-breathing.htm

many times a day for best results

These may be helpful too but only if no increase in sx or pain-
http://neurotalk.psychcentral.com/album.php?albumid=422

If you ever had any accident or falls ,sports injuries etc an expert chiropractor might be worth seeing.
the chiro I found was very helpful for me , did PT type modalities as well as adjustments. He had a low level laser as well as IF stim - I bought an IF stim because it was so helpful - I will buy a low level laser when prices come down more - but it was great too.