Hi MsL!
Great questions! Do you see a good neuro, who's knowledgeable with rsd? And, a PT doctor, is that what you're saying?

I see a good diagnostician, and, with this disease we almost Always need one, and that should be a Neuro. He should be seen as often as needed.
Then,
In my best experience, s/he orders shots, or psych, PT, whatever. (I don't have a lot of trust in Docs that diagnose/treat this particular disorder.) a different conversation, as there are many docs seeing this as a huge growth industry, for their small business'.

That was a close one you had there, with a different doc taking your care over!

To answer your first question, Yes, it absolutely sounds like you are experiencing some spread of the disease. That's the way mine did it. Now, the question is, what are you going to do?

I'm not a doctor, but by the excellent ones I have seen, It would be possibly some blocks (for dx only,) and light exercise / stretching, aqua therapy.

Ask your doctor..
Wish you the best.

pete