i'm no physician but i'm familiar with friends and family who have diabetes. even if physically fit people can still have diabetes. it may also be a sign that the level of iron in your blood is significantly low. anemia is a condition associated with low iron where staying warm is a challenge. taking iron pills or daily vitamins may help your blood stay healthy and circulate properly allowing good blood flow through out the body. thus keeping your body temperature normal. probably having your blood sugar and levels checked couldn't hurt. at least that would be two things you could narrow down on the list. <positive_smiley>
i am 61 been exercising 3. 3 miles on treadmill 4. 4 miles on bicycle and a mile on walking track everyday-have cold feet. it concerns me that my resting heart rate is 49 and i have cold feet at night