My finger pads are getting very sore now too...
It is just the same thing with a different name. There's arguments about both acronyms, and whether they are an accurate reflection, but there's a lot of opinion and subjectivity about it - I'm sure it wasn't an easy decision to change the name, but CRPS was felt to describe it more fully. Obviously not everyone agrees!
Hope your hands cool, going to give mine a rest now. Flaming Fingertips is about right...
Take care,
Bram.