The most likely medical condition you have is Raynaud's Syndrome/Disease/Phenomena. You can google it, or click the link below for more information. Medications are available to help, although the first approach is Non-pharmacological treatments such as:
* Avoid sudden cold exposure
* Minimize emotional stress
* Use strategies to keep the whole body warm, including dressing warmly (eg, with thermal underwear and heat conserving hat)
* Keep digits warm (eg, mittens or electric hand warmers instead of gloves).
* Use methods to help terminate an attack of RP. These include placing the hands under warm water or in a warm place (such as the axilla), or rotating arms in a whirling or windmill pattern.
* Avoid rapidly changing temperatures, such as quickly moving from a hot environment (90 degrees F) into an air-conditioned room (70 degrees F); cool breezes, or humid cold air is also recommended.
* Avoid cigarette smoking, since regular smokers are sensitized to the vasoconstrictive properties of cigarettes
* Avoid sympathomimetic drugs (such as decongestants, amphetamines, diet pills, herbs containing ephedra)
My best for your health.
M. M, MD
http://www.mayoclinic.com/health/raynauds-disease/DS00433...