Man - Do you experience colour changes when you have the cold episodes? If you do, what colour do your hands go? Raynauds can be diagnosed by blood tests and symptoms. A lot of the time, symptoms of Raynauds can appear as a under-active or over-active thyroid. You should get some blood tests done and then possibly see a Rhueamotolgist who will diagnose Raynauds if thats what you have.
When I have a Raynauds attack I lose all feeling in the affected area, have very bad pain in the same area (makes me want to cry at times), and the affected area becomes a mottled colour, then goes grey, then blue before turning bright red after circulation is back to normal. I always have cold hands to and feet and lower legs.
My feet and lower legs are the worse affected. When I have a attack I cant move as it feels like I don't have any bones and its painful again. I also cant go in fridges, touch cold water or anything cold. It causes a episode, stiffness and/or excruciating pain. Hope this has helped some.