I am surprised that no PT was rx'd..
Work comp cases have so many extra rules & delays..
You may need to seek out a good work comp atty if you think this might be a very serious injury.

What is your pain level?
Did any of the drs do "hands on " evaluations or just ask question?
PTs will do a hands on - experienced ones are usually more knowledgeable on finding the cause than MDs.

You may or may not need an MRI, but if none have done hands on palpation eval yet, ask for a advanced PT eval.

You may just need some sessions of expert PT to get thru this.
PT can be for pain relieving modalities as well as rehab/recovery.
You might also look into a physiatrist -
http://www.google.com/url?sa=t&rct=j...47883778,d.aWM