So you only got 3 days worth of PT????
Was that all the dr allowed or all that wc allowed?

You really should be getting more PT to see it it can help or not, hopefully a good one should be of help.

Is your claim accepted so far?
Is the treating doctor yours or a wc appointed dr?
If WC stops working with you - or things get too complicated consult/interview some wc attys - don't sign with the first one -check them out after talking w/them, some are better than others.

Work comp is a tricky animal, and lots of rules to follow, you might read on our workers comp forum as well as your state website in the work comp section.
http://neurotalk.psychcentral.com/forum30.html

Did you have any previous health issues or injuries before this one?

Be sure to mention the arm numbness as a symptom and be sure it is added on to the claim paperwork.- or they will only focus on the lumbar and it may leave you with unaddressed arm problems down the road.

The arm numbness could be from the neck itself or some other upper body strain, but it could become a chronic thing so don't overlook it.