I definitely understand how the cold affects limbs, nerves, muscles, etc. I find I try to find warmth and then once I have it try to keep it. If I can prevent the sudden temperature drops by regulating body temperature then life seems okay. It's when I can't control body temperature where deep pain is noticed and life seems to unravel which trickles into my mental state. I try to sleep more to brush the pain away but that doesn't always work either because being in a relaxed state now causes more pain. I think the winter presents challenges when it comes to staying warm. In the summer I'm good until about 85 degrees, anything more and it has the same effect as being cold.