hi Ming,
last winter, after I was first diagnosed, I was cold all the time, especially my hands and feet, a problem I'd never had in my life before. Was a bit worried. This winter, hardly at all, no more than you'd expect in a very cold winter. I don't have any explanation for this, other than that during the intervening time I brought my blood sugar levels down to a very considerable degree. I can only assume this helped a lot. What are your husband's levels like? How does he treat his diabetes?