I would say give it more time.
Be as cautious as possible to avoid any jerks or quick moves.

I hope PT isn't focusing on much strengthening so soon?
Some places use a set plan for PT , and that is not good for TOS.
You can still have TOS even after surgery. Sometimes surgery is a 100% fix, but sometimes not.. some have lingering issues..
Seems like PT post op should be gentle, passive & pain relieving therapy at first.
But I haven't had surgery so maybe the others will chime in on their PT post op experiences.

You might think about other employment that would still use your nursing skills, but less hands on heavy work..
Why take a chance on making things worse in the future?

Seek out the best PTs that you can find, if things aren't improving after 2 weeks or so, move on to someone else. Move on sooner if things get worse right away..