I had a mild case of it in my 30's effecting my fingers which turned white and cold for no reason. It did go away in 2-3 years. I was told to rotate my arm like a propeller to force blood to the fingers which alleviated the numbness.
Regards

T1N0M0 squamous cell carcinoma treated with hemi-glossectomy and tongue reconstruction with a radial forearm flap 3/04