question: My neck and upper back have hurt for 2 days. My upper left arm has felt kind of sore near the shoulder and weird the rest of the way down. It s hard to turn my head to the right. My left ankle seems to hurt when I walk. When I smile the left side doesn t go up as far. I ve felt lightly nauseous today. Also my perifial vision in my left eye seems slightly flashy. What could thus be?