Cozyc, You're askiing excellent questions! Although I don't know all the answers, I'll try to help and hopefully, others will pitch in!
I was given blocks by Dr S in Philly (now, retired, and it still takes 2.8 years to get an appt. w/ his successor) Which, I will do.

He treated blocks, as though they diagnostic only. I agreed.
He numbed me up good, but the pain remained. Especially in the upper thoracic area, when he sent me to Jefferson's hand center to get TOS confirmed. (Still I was the test dumbie for TOS, He brought in droves of students, at least a dozen/day, probably more, and I was told to 'stick em up", hands up, at a 90 degree angle, then rotate or force the shoulders back. You can do this yourself, if you have someone, and you have TOS, they'll notice that you lose your pulse when you do this maneuver. Also, your hands will turn pale, due to lack of circulation.

Also, first and foremost, check with your attorney, (with W/C you need one, don't pay more than 25%) and FIND A NEW DOCTOR!
Talk clearly, but calmly to the ins. company, or take your attorneys advice, not mine!
Some Attorneys can be too aggressive, and tick off the ins adjuster, just what you don't want!

I wish you the best!
I have friends in similar situations, and I've been through this, although with Auto, not W/C.


God Bless.


Pete


asb