Do you have temperature regulation issues? (If you aren't noticing it, it doesn't mean it's happening.) Strange sweating? Any strange hair growth patterns? Changes in skin texture? Shiny skin? Changes in your nails?

These issues don't have to be constant. They can come and go at various times over the years. They can be limited to a very small area, or they can move body wide.

Absolutely explore EVERY possibility. Get opinions from doctors with significant CRPS experience.