What Causes Tingling And Numbness On Entire Body?

I have all over tingling and numbness in my entire body. I also have muscle aches all over--which I think could just be linked to being tired but it started out of no where a couple days ago and hasn't gone away. My skin looks blotchy and discolored. It goes all the way through my entire body and is constant, it started last night and has been consistent ever since. What could this be?