I think if you believe it is work related you are the one than needs to file the wc claim. But if you go & interview with a few work comp attys they should be able to advise if it a worthy case/claim to make and if so they should help you with paperwork and filing.

but they would only do that if they feel you have a case and after you choose one and sign a "contract" with them .

Make this choice carefully as to who you feel would represent you the best - sometimes they will make everything sound very nice to get you to sign with them.. but then they blow you off and do not help you with follow up thru the wc process.
some tend to wait until the easy money looks like it is on the way
avoid this type

if you have any drs papers stating why or why not sx could be work related vs ms take those with you..