Cold, Blue legs??!?

I noticed earlier today, I was outside in the heat, and my left leg which is usually peachy or at least Ivory were an icy blue color and kind of cold. I shook my legs and kind of danced around as best I could and it sort of went away and I waived it off as nothing. Now, 3 hours later, I'm laying under 2 layers of blanket and both of my legs are cold and my left arm is killing me like I pulled a muscle in it or something (even though nothing like that happened) and I have a headache. 

I know I have an iron deficiency, but I took iron today, as well as my prenatals and vitamin d. 

Has anyone else experienced this or does anyone have any idea of what could be the problem or something I could do to possibly fix it? Advice?