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I reviewed your query and here is my advice.
It looks like you are suffering from Raynaund phenomenon. This disease causes some areas of your body such as your fingers and toes to feel numb and
cold in response to cold temperatures or
stress. In Raynaud's disease, smaller arteries that supply blood to your skin narrow, limiting blood circulation to affected areas .
It may accompani the rheumatoid autoimmune diseases that you may be suffering from.
You should protect digits,, avoiding emotional stresses,
smoking, cold temperature, and tools that vibrate the hands.
Hope I have answered the question.
Let me know if I can assist you further.