cold fingers / low blood circulation

 It takes forever for my fingers to warm up when climbing - typically 45min / hour. If I rest too long they go cold again!  I ´ve had problems with my shoulders/neck so that they tend to be stiff.  Anyone else with same problem? A real pain especially when climbing outside and temps are low :) ps. Colour of my fingers is normal and they don´t go numb (unless sometimes when sleeping in "bad" posture.)