My son (15) is having tingling on the side of his face--temple area--or about 3 days. His eye doesn t twithc, but he said it feels like something is crawling under his skin. A few other symptoms, like headache, and some period shivering, like he all of a sudden got a chill (this maybe happens once every other day). I ve been calling neurologists, but wonder how much I should be worried? Anything besides super scary things that would cause this symptom?