Do you get chillblains - this used to be the main problem I had with the white toe thing - probably because of the way I warmed them up suddenly! One year my GP gave me tablets to improve my circulation, but then I found being more active improved it. Now I just try and keep them warm and to be honest never notice they are like ice. dh complains when I put my feet on him! Means I can make v. good pastry as my hands are always cool, but can't warm a glass of wine to get the aromas out.