Ever since yesterday morning my throat had had a sharp pain when swallowing. This morning it got worse. I tried swallowing water to see if my throat was dry but it hurt extremely. I can't eat food because it hurts to swallow it , and I can barely keep it down. When I got home from school today I got out of my car and stood up and got a really sharp pain in my head and it hasn't stopped. I took 2 Advil pills this morning, and 2 more just now but it's not helping at all. I'm also really hot at some times and really cold.