I promise you are not the only one. And I can almost assure you that circulation is indeed an issue. My rsd is in my right hand/wrist and my bones are loosing density due to lousy circulation. Our hands want to help, they just don't know how sick they are. It's not your fault, you're just being human. But get it checked as soon as you can, and wrap it up if you feel it needs it.
Just be careful and keep us posted. Best wishes.