Over the past few days I have experienced what appears to be Raynaud's for the first time in my life. Each time, a single finger became numb and completely white. My nailbeds were also white. After about 10 minutes of this, they returned to normal.
I wouldn't be so concerned about this, but I've had another symptom occasionally for about a year. It happens about once a week, and it happened last night worse than it ever has. All of a sudden (usually at night) I will get what I can only describe as if thousands of electrical needles were poking my legs. The feeling is bilateral, from my ankles to about halfway up my thighs. Last night the sensation woke me up, and it lasted about 5-10 minutes. I've done some reading on Restless Legs Syndrome but this doesn't sound like it.