Thanks, everyone for your replies !

My shoulder/neck/arm are still really painful ...going on two weeks now..
I went to the chiropractor again yesterday for more ultra-sound..she's not sure what it is at this point..

Thanks for your suggestions and your experiences..it makes sense that an old injury will be vulnerable. ..and as Bobber said, it could be an old injury reacting to the weather as in an arthritic condition..

Regarding P.T., it's the perrenial question of do you do P.T. and movement despite the pain, or do you rest the area...the Chiro did say that if it rests too long, the shoulder can freeze...
The sun still hasn't surfaced for a couple of weeks and more rain is forcasted..
I guess only time will tell whether or not the RSD has decided to take a winter cruise to the right side of my upper body..
Sandy, you're amazing to walk in 12 degree weather!! Do you have polar bear ancestry?
Thanks, everyone, for your suggestions, experiences and support..
It is so comforting!!!....good medicine.........
hugs, and wishes for your comfort..
hope4thebest