It sure sounds like raynauds. Do your fingers and hands go white/blue in response to cold?
I have raynauds which is a common secondary condition with diseases like lupus, scleroderma and polymyositis. Since I have all three I was destined to have raynauds.
There are other causes but possibly you should seek a second opinion. Unless the condition is severe it is usually not treated. Since I am a winter person and spend all the time I can skiing, hiking, snowshoeing it is a problem but I have learned to dress and cope with it down to -10F. Otherwise, it is more annoyance than anything else.
MCTD (lupus, scleroderma, polymyositis). Diagnosed 2005. Kidney, liver, GI tract, dysphagia, raynauds, Barretts esophagus, quadriplegic in 2005. Recovered and now active in skiing, tai, chi, hiking, golf. Meds: prednisone 2.5mg, imuran 25mg, amlodipine, benazapril, omeprazole, potassium, folic acid, vitamins, maxide and various supplements and vitamins.
Remain optimistic and you can overcome the odds.