My fingers used to turn waxy white, but that hasn't happened in quite a long time. Was mostly a wintertime thing when it happened. I don't recall that it was very painful. You might want to consider relocating to a warmer area. The last couple of years I've found it harder to tolerate the cold.
My feet and lower legs ofter feel numb and like ice blocks. The other night one lower leg felt warm to the touch and the other one cold to the touch.
A long time ago I had stiff hands and fingers to the point I couldn't hold a golf club. A rheumatologist in Des Moines diagnosed CREST Syndrome
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A rheumatologist at Mayo couldn't confirm CREST and sent me to a hand surgeon who worked on both hands with little success. A booklet given to me by my boss's wife mentioned flax oil as a possibility. I started taking it in capsule form and all of the issues with my hands went away. Today you would never guess that there was ever anything wrong with them.
That same booklet mentioned to take zinc for stinky feet. I started taking that too and and ever since I have not had an issue with foot odor. I wore a beater pair of tennis shoes for 2 years and they never needed washing. Even today I have no noticeable foot odor, stinky socks or sweatty feet. If I go for a few days without a shower my feet may feel sweatty, but they are dry to the touch. You don't need as much zinc as you might think. I take 22mg twice a day in the form of zinc picolinate which I get from Swanson's vitamins.
https://www.swansonvitamins.com/collections/customer-favorites
Be advised that I never found it helpful in dealing with the powerful foot odor that plagues some adolecent children.