I am 75. no diabetes. my big toes have been slightly numb for a couple of years. Today I noticed one has like a bruise on the left side, and on the inside. About 1x1/2 inch. No pain. Also on the inside is dry cracked skin. Don't recall an injury. Other toe has bruise under nail and over half of nail is coming off. Been like this for two months. Don't recall injury. Only big toes are numb.